William Heise and Jess Martin County Parks


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Jess Martin County Park

2955 Highway 79, Julian, CA 92036

Located just south of downtown Julian, Jess Martin Park offers open space with stunning mountain views. The park features sports fields, a playground, picnic areas, walking paths, and plenty of room to relax or gather with friends and family.

  • Jess Martin County Park has one host campsite with full hookups (electricity, water, and sewer).

Learn more at Jess Martin County Park.

Volunteer Opportunities:

Activity Shifts Start End
Sports Park Host 1

William Heise County Park

4945 Heise Park Road, Julian, CA 92036

Nestled in the forest near Julian, this mountain park offers scenic camping, hiking, and wildlife viewing year-round. Visitors can choose from cabins, tent sites, and RV spaces, with access to miles of trails through pine and oak woodlands.

Snowfall is common in winter, making it a favorite for cold-season camping and cozy cabin stays.

  • William Heise County Park has four host campsites with full hookups (electricity, water, and sewer).

Learn more at William Heise County Park.

Volunteer Opportunities:

Activity Shifts Start End
Campground Host 1
Court-Ordered Community Service | Servicio Comunitario Ordenado por la Corte 1

Support San Diego County Parks!

San Diego County Parks Society logoEstablished in 1980, the San Diego County Parks Society supports the goals, programs, and activities of San Diego County Parks and Recreation. Your donation funds environmental education programs, youth and community events, historic and cultural preservation, habitat restoration and conservation efforts, and support for the dedicated volunteers who care for our parks. Your gift helps protect and enhance the parks we all love today and for generations to come.

Make a Donation! | Join the Parks Society!

The San Diego County Parks Society is a nonprofit 501(c)(3), (EIN #95-3655610) organization, and all donations are tax-deductible. Contributions directly support the improvement and maintenance of park facilities, as well as important educational and community initiatives.