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List of Activities

El Monte Early Morning Birding

May 11 at 8:00 am - 10:00 am

East County

El Monte County Park is recognized as a birding hotspot with an impressive array of birds. Join Ranger Arnold, an experienced birder, to catch those winged creatures in action! We’ll…

Presented by San Diego County Rangers

Habitat Restoration Crew

May 11 at 8:00 am - 12:00 pm

Central San Diego

How can you get your exercise for the day while helping to improve the natural habitats in Mission Trails at the same time? By coming out to lend a hand…

Presented by Mission Trails Regional Park

Volcan Mountain Summit Hike

May 11 at 8:00 am - 11:00 am

Headwaters

Volcan Mountain Wilderness Preserve offers great hiking through 2,900 acres of beautiful mixed conifer forests. Join the Volcan Mountain Foundation for a guided, 5.2 mile hike to the summit. The…

Presented by San Diego County Rangers and Volcan Mountain Foundation

Restore Rueda Canyon

May 11 at 8:00 am - 11:00 am

Central San Diego

In 2017, San Diego Canyonlands was awarded a Prop 1 grant through the San Diego River Conservancy to restore and enhance Rueda Canyon. Almost 400 non-native palm trees were removed…

Presented by Friends of Tierrasanta Canyons and San Diego Canyonlands

Guided Nature Walk from Kumeyaay Lake Campground

May 11 at 8:30 am - 10:00 am

Central San Diego

Join an MTRP Trail Guide on a guided nature walk and learn about the plants, animals, geology, history, and ecology of the park. Explore the park’s east side on the…

Presented by Mission Trails Regional Park Trail Guides

Outdoors Indoors: Collaborative Art Project

May 11 at 9:00 am - 12:00 pm

El Cajon, East County

Ever wanted to help paint a community mural? Now's your chance! Join us at Parkway Plaza over the weekend to paint a temporary mural of a riparian environment for mall…

Presented by San Diego River Park Foundation and Parkway Plaza

Dog Beach Clean Up

May 11 at 9:00 am - 11:00 am

Coastal

The San Diego River Mouth needs your help! Join fellow animal lovers and volunteers as they work to pick up litter at Dog Beach and the surrounding area, keeping it…

Presented by Friends of Dog Beach and Dog Beach Dog Wash

Clean & Green River Clean Up

May 11 at 9:00 am - 12:00 pm

Central San Diego

Each year, San Diego River Park Foundation volunteers remove more than 200,000 pounds of trash from our River. Without our amazing volunteers, this trash would be left to pollute native…

Presented by San Diego River Park Foundation

IMPACT Invasive Species Removal Work Party

May 11 at 9:00 am - 12:00 pm

Central San Diego

You can help improve habitat for wildlife at Mission Valley Preserve, a 52-acre wildlife preserve right in San Diego! Volunteers will help to remove non-native invasive plant species, clearing the way…

Presented by San Diego River Park Foundation

San Diego River Ramble Guided Walk

May 11 at 9:00 am - 11:00 am

Central San Diego

Take a hike with a San Diego River Park Ranger. Learn about the history of the San Diego River and Mission Valley on this easy, 3-mile round trip walk. Leashed,…

Presented by San Diego River Park Foundation and City of San Diego, Open Space Division

Hike Behind the Scenes at the River Park – Postponed

May 11 at 9:00 am - 10:30 am

East County

THIS EVENT HAS BEEN POSTPONED DUE TO RAIN. PLEASE JOIN US ON JUNE 8 AT 9AM. Come along on a guided hike behind the scenes of the River Park! Lakeside's…

Presented by Lakeside’s River Park Conservancy

Famosa Slough Wetland Restoration

May 11 at 9:00 am - 12:00 pm

Coastal

The Famosa Slough is an important wetlands habitat right in urban San Diego! This 37-acre park is home to many different species of birds and animals. Volunteers will help to restore…

Presented by Friends of Famosa Slough

Beach Cleanup – Weather Pending

May 11 at 9:00 am - 11:00 am

Coastal

THIS EVENT MAY BE RESCHEDULED DUE TO WEATHER. UPDATES WILL BE POSTED HERE BY 8AM ON SATURDAY, 5/11. Did you know that there are 5.2 trillion pieces of plastic floating…

Presented by Surfrider Foundation

Rancho Mission Canyon Environmental Stewardship

May 11 at 9:00 am - 12:00 pm

Central San Diego

You can help beautify and restore habitat in Rancho Mission Canyon, creating habitat for local wildlife and keeping the San Diego River seasonal waterways clean. Volunteer activities include: invasive plant…

Presented by San Diego City Open Space Canyon Rangers

Family Friendly Mountain Biking Skills Course

May 11 at 9:30 am - 11:30 am

East County

The San Diego Mountain Biking Association in partnership with Sprockids San Diego will be hosting a mountain biking skills course at Big Rock Park in Santee! The event will help…

Presented by San Diego Mountain Biking Association and Sprockids

Temescal Creek Headwaters Assessment – Postponed

May 11 at 10:00 am - 2:00 pm

Headwaters

DUE TO THUNDERSTORMS, THIS EVENT HAS BEEN POSTPONED UNTIL 6/1. PLEASE CONTACT VOLUNTEER@SANDIEGORIVER FOR MORE INFORMATION. Pack up the car and head just north of Julian for an easy hike…

Presented by San Diego River Park Foundation

Wildlife Tracking at Kumeyaay Lake

May 11 at 10:00 am - 12:00 pm

Central San Diego

Did you know there could be signs of wildlife right under your nose? Join the San Diego Tracking Team to learn how to identify these signs and find out which…

Presented by San Diego Tracking Team

Open House: Creative Reuse @ Art FORM San Diego

May 11 at 10:00 am - 2:00 pm

Central San Diego

Art FORM instills art education and environmental stewardship through creative reuse. Come visit their Creative Reuse Store in Normal Heights from 10 am - 2 pm! Become inspired, gather reusable…

Presented by Art FORM San Diego

Flinn Springs Touch Table

May 11 at 1:00 pm - 3:00 pm

El Cajon, East County

Visit our touch table where you will learn about the plants and animals of Flinn Springs. We’ll have animal pelts to touch, and some real animals to meet and hold.…

Presented by San Diego County Rangers

Star Party at Mission Trails Regional Park

May 11 at 7:30 pm - 10:00 pm

Central San Diego

Join MTRP Trail Guide and amateur astronomer, George Varga, and his telescope at the far end of the Kumeyaay Lake Campground’s Day Use Lot. No white light flashlights near the…

Presented by Mission Trails Regional Park

Star Party at Oakoasis County Preserve – CANCELLED

May 11 at 7:30 pm - 9:00 pm

East County

THIS EVENT HAS BEEN CANCELLED DUE TO INCLEMENT WEATHER. For a similar event, we recommend checking out the Full Moon Hike at Louis Stelzer County Park on May 18. To…

Presented by San Diego County Rangers

Outdoors Indoors: Collaborative Art Project

May 12 at 9:00 am - 12:00 pm

El Cajon, East County

Ever wanted to help paint a community mural? Now's your chance! Join us at Parkway Plaza over the weekend to paint a temporary mural of a riparian environment for mall…

Presented by San Diego River Park Foundation and Parkway Plaza

Mother’s Day San Diego River Garden Work Party

May 12 at 9:00 am - 11:00 am

Central San Diego

Join us as we continue to care for one of the first parks in Mission Valley! Volunteers will be working on light gardening activities such as planting, watering, weeding, trail…

Presented by San Diego River Park Foundation

Silverwood Tributaries and Riparian Habitat Exploration

May 12 at 9:00 am - 4:00 pm

East County

The oak-shaded tributaries of the San Diego River are of great ecological importance to the river's watershed. Join Silverwood's Resident Naturalist Phil Lambert to learn all about these special places.…

Presented by San Diego Audubon Society

Fly Fishers’ Casting Clinic

May 12 at 9:00 am - 11:00 am

Central San Diego

The San Diego Fly Fishers invite you to Lake Murray to receive personalized training by experienced instructors! A perfect way for children to play and learn at the same time. …

Presented by San Diego Fly Fishers Club

Guided Nature Walk from the Visitor Center

May 12 at 9:30 am - 11:00 am

Central San Diego

Join an MTRP Trail Guide on a guided nature walk and learn about the plants, animals, geology, history, and ecology of the park on one of these scenic trails: •…

Presented by Mission Trails Regional Park Trail Guides

Sunday Oakoasis Stroll

May 12 at 10:00 am - 11:30 am

East County

Come see the 2,200 new trees recently planted at Oakoasis Preserve! This is a nice and moderately challenging walking opportunity that the whole family can enjoy – especially adults and…

Presented by San Diego County Rangers

Native American Flute Circle

May 12 at 1:00 pm - 3:00 pm

Central San Diego

Come see the San Diego Native American Flute Players in the outdoor amphitheater on the back terrace of the Visitor Center on the 2nd Sunday of each month from 1…

Presented by Mission Trails Regional Park Foundation

Guided Bird Walk – Visitor Center Loop Trail

May 18 at 8:00 am - 10:00 am

Central San Diego

Join MTRP birders Jeanne Raimond and Millie Basden for a guided bird walk along the Visitor Center Loop Trail. The walk will pass through a variety of habitats, so expect…

Presented by Mission Trails Regional Park

Adventure 16 Backpackers’ Swapmeet

May 18 at 8:00 am - 11:00 am

Central San Diego

A special event for all of you outdoor enthusiasts! This event features a camping gear swapmeet (free space to sellers), vendor fair, parking lot sale and more! Whether you are…

Presented by Adventure 16 San Diego

San Diego Plein Air Painters Workshop

May 18 at 8:30 am - 12:15 pm

Central San Diego

Spend a quiet morning capturing the natural beauty of the San Diego River on canvas. Beginner-intermediate artists welcome. You’ll receive tips from local professional and hobbyist painters! Bring your own…

Presented by San Diego Plein Air Painters Meetup

Tecolote Canyon Weed Warriors

May 18 at 9:00 am - 11:00 am

Coastal

You can help beautify a native plant garden at Tecolote Nature Center, keeping the area beautiful for visitors and creating habitat for local wildlife! Volunteer activities include: trail maintenance, invasive…

Presented by Tecolote Nature Center

Coastal Habitat Restoration

May 18 at 9:00 am - 12:00 pm

Coastal

You can help save one of the last Coastal Dune Habitats in San Diego! This special ecological area at the mouth of the San Diego River is home to threatened…

Presented by San Diego River Park Foundation

Hike to the Source of the River

May 18 at 9:00 am - 2:00 pm

Headwaters

Have you ever wondered where the San Diego River starts? Find out by joining this 5-mile moderate hike with an elevation gain/loss of approximately 500 feet. You'll traverse a beautiful…

Presented by San Diego River Park Foundation and San Diego County Rangers

Habitat Heroes @ Anza Native Schoolyard Habitat

May 18 at 9:00 am - 12:00 pm

El Cajon, East County

Native plant gardens not only serve as important habitats for local wildlife, but they are also an incredible way to connect kids to nature! The San Diego River Park Foundation…

Presented by San Diego River Park Foundation and Earth Discovery Institute and Anza Elementary School

Lake Cuyamaca Hike with the Ramblers

May 18 at 9:30 am - 11:30 am

Headwaters

Looking for a chance to socialize and explore the outdoors with new friends? The Julian Woman’s Club Ramblers will be taking a hike at Lake Cuyamaca and they invite you…

Presented by Julian Woman’s Club Ramblers

Nature Story & Craft with a Ranger

May 18 at 10:00 am - 11:00 am

Central San Diego

Children ages 5-10 are invited to join Ranger Heidi for a nature story, followed by an arts-and-craft project related to the theme of the story. Meet at the Kumeyaay Lake…

Presented by Mission Trails Regional Park

Kumeyaay Ethnoecology Guided Hike

May 18 at 10:00 am - 11:30 am

El Cajon, East County

Learn how the Kumeyaay thrived in San Diego County's backcountry and how they used and took care of Flinn Springs County Park. Join us for an easy, 1-mile guided hike…

Presented by San Diego County Rangers

Tracks and Scat – What Animal Left That?

May 18 at 10:00 am - 12:00 pm

El Cajon, East County

Join a Ranger on a moderate hike along the trails and creek to discover evidence of night-time activity. This is a 1-mile hike with an elevation gain/loss of approximately 500…

Presented by San Diego County Rangers

CA Native Plant Workshop: Milkweed, Monarchs & Butterfly Friends

May 18 at 10:00 am - 11:30 am

Central San Diego

On May 18, join Moosa Creek and other local gardening enthusiasts for a California Native Plant workshop at Mission Hills Nursery! We will explain the essential elements needed to attract…

Presented by Moosa Creek Nursery and Mission Hills Nursery

Volcan Mountain Family Discovery Day

May 18 at 10:00 am - 4:00 pm

Headwaters

Bring the family out to VMF's Volcan Mountain Nature Center for a day of nature exploration, fun activities and short hikes--for kids of all ages! Discover the verdant conifer and…

Presented by Volcan Mountain Foundation

Alpine Guided Hike: Native Plants & Wildflowers of Wright’s Field

May 18 at 10:00 am - 12:00 pm

East County

Join the Back Country Land Trust for an easy, 2-mile guided hike of Wright’s Field Ecological Preserve, including an exploration of Alpine Creek's headwaters. This secluded tributary flows through the…

Presented by Back Country Land Trust

Guided River Walk

May 18 at 10:00 am - 12:30 pm

Central San Diego

Join us in Mission Valley for a moderate, guided walk along our San Diego River. This walk will follow the River along the north trail from the Fashion Valley Mall…

Presented by Walkabout International

Open House: Flora & Fauna of the San Diego River

May 18 at 10:00 am - 1:30 pm

East County

From mountains to the ocean, San Diego county is known for its incredible biodiversity. Come learn about the flora and fauna of our region and how we can protect it!…

Presented by Santee Historical Society and Project Wildlife and The Zen of Monarch Butterflies

Open House: Creative Reuse @ Art FORM San Diego

May 18 at 10:00 am - 2:00 pm

Central San Diego

Art FORM instills art education and environmental stewardship through creative reuse. Come visit their Creative Reuse Store in Normal Heights from 10 am - 2 pm! Become inspired, gather reusable…

Presented by Art FORM San Diego

Petting Zoo, Pony Rides, and River Crafts

May 18 at 10:30 am - 1:30 pm

Central San Diego

Travel back in time to experience Mission Valley's agricultural past with a petting zoo and pony rides! Your little ones can interact with the animals and join in some river-themed…

Presented by Mission Valley Library

Famosa Slough Nature and Bird Walk

May 18 at 1:00 pm - 3:00 pm

Coastal

Bird-watchers and nature lovers are invited to join an easy, guided bird walk with great views of a variety of birds residing in this salt marsh habitat. Meet at the…

Presented by Friends of Famosa Slough

Clean Water Mobile Learning Lab

May 18 at 2:00 pm - 9:00 pm

El Cajon, East County

Explore how the quality and availability of water affects the quality of our lives by visiting the Wyland Foundation's Mobile Learning Lab, a state of the art 1,000 sq. ft.…

Presented by San Diego River Park Foundation and City of El Cajon and Wyland Foundation

Full Moon Hike

May 18 at 7:00 pm - 8:30 pm

East County

There are a limited number of full moons you can see in your life. Let this be one! Meet at the parking lot at Stelzer park for a moderate night…

Presented by San Diego County Rangers

Trail Improvement Crew

May 19 at 8:00 am - 12:00 pm

Central San Diego

You are invited to volunteer on the Trail Improvement Crew, held on the third Sunday of each month from 8 a.m. to 12 p.m.  We will meet at the Day…

Presented by Mission Trails Regional Park

Endangered Species Day at Silverwood Wildlife Sanctuary

May 19 at 9:00 am - 4:00 pm

East County

Join us at San Diego Audubon's Silverwood Wildlife Sanctuary on May 19. Guided nature tours will be offered at 10 a.m. and 1:30 p.m., highlighting the rare and threatened species…

Presented by San Diego Audubon Society and Endangered Species Coalition

River Trail Group Bike Ride – POSTPONED

May 19 at 9:00 am - 11:00 am

Coastal

THIS EVENT HAS BEEN POSTPONED DUE TO INCLEMENT WEATHER. PLEASE STAY TUNED FOR A RESCHEDULED DATE. Looking for some new places to ride with some camaraderie on the way? Join…

Presented by San Diego River Park Foundation

Family Boulder Creek Bonanza Outdoor Exploration – POSTPONED

May 19 at 9:00 am - 1:00 pm

Headwaters

THIS EVENT HAS BEEN POSTPONED DUE TO INCLEMENT WEATHER. PLEASE JOIN US ON JUNE 1 AT 9AM. Look for frogs, meet animals face-to-face, learn about harvesting a wild salad, and…

Presented by San Diego River Park Foundation and Michelle Renaud and Alicia Berg

Point Loma Native Plant Garden Workparty

May 19 at 9:00 am - 11:00 am

Coastal

Come join the River Park team as we work to enhance and beautify this hidden gem in Point Loma. Volunteer activities include watering, weeding, trail maintenance and more! You will…

Presented by San Diego River Park Foundation and Friends of the Point Loma Native Plant Garden

Fly Fishers’ Casting Clinic

May 19 at 9:00 am - 11:00 am

Central San Diego

The San Diego Fly Fishers invite you to Lake Murray to receive personalized training by experienced instructors! A perfect way for children to play and learn at the same time. …

Presented by San Diego Fly Fishers Club

Guided Nature Walk from the Visitor Center

May 19 at 9:30 am - 11:00 am

Central San Diego

Join an MTRP Trail Guide on a guided nature walk and learn about the plants, animals, geology, history, and ecology of the park on one of these scenic trails: •…

Presented by Mission Trails Regional Park Trail Guides

Snakes and Skins Touch Table

May 19 at 10:00 am - 11:00 am

East County

Come and learn about the snakes, tortoises, and other animals that inhabit your local parks; touch live snakes, feel real animal pelts, and learn about the difference between native vs.…

Presented by San Diego County Rangers

Sunday Oakoasis Stroll

May 19 at 10:00 am - 11:30 am

East County

Come see the 2,200 new trees recently planted at Oakoasis Preserve! This is a nice and moderately challenging walking opportunity that the whole family can enjoy – especially adults and…

Presented by San Diego County Rangers

They Only Come Out at Night!

July 20 at 7:30 pm - 9:30 pm

El Cajon, East County

Join a ranger on a nighttime hike along the creek and trails of Flinn Springs County Park to look for night-loving creatures. We will see bats and owls, and maybe…

Presented by San Diego County Rangers

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