3.0
(20)
24
runners
01:37
12.2km
320m
Running
Jog the difficult 7.6 miles (12.2 km) Jepson and Johnstone Trail Loop in Tomales Bay State Park, featuring shaded forests and bay views.
Last updated: February 26, 2026
Tips
Your route passes through a protected area
Please check local regulations for:
Waypoints
Start point
Parking
Get Directions
12 m
Highlight • Beach
5.50 km
Highlight • Beach
Tip by
12.2 km
End point
Parking
Way Types & Surfaces
Way Types
12.2 km
< 100 m
Surfaces
12.2 km
< 100 m
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Elevation
Highest point (160 m)
Lowest point (10 m)
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Weather
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Friday 22 May
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8°C
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Additional weather tips
Max wind speed: 19.0 km/h
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This route was planned by komoot.
The full loop is approximately 12.2 kilometers (7.6 miles) long. For jogging, it typically takes around 1 hour and 37 minutes to complete, though this can vary based on your pace and stops.
The full Jepson and Johnstone Trail Loop is rated as 'difficult' for jogging due to its length and elevation changes. While some sections are easier, the overall route includes moderate to steeper climbs and descents with switchbacks. Beginners might find shorter segments more manageable.
The trail is located within Tomales Bay State Park. Specific trailhead access points are available within the park, and parking is typically provided at designated areas. You will need to pay an entrance fee to access the park.
The terrain is varied and scenic. You'll jog through mostly shaded forests with a soft carpet of fir needles, bay, and oak leaves. There are gentle to moderate climbs, some steeper descents with switchbacks, and wooden bridges crossing marshy creek areas. Occasional paved private access roads also need to be crossed.
The loop offers diverse scenery, including impressive forests of Bishop pine, Bay, Toyon, and Oak trees. You'll pass through the unique Jepson Memorial Grove and can enjoy picturesque views overlooking Tomales Bay. The route also provides access to beautiful beaches such as Heart's Desire Beach and Shell Beach, as well as the secluded Pebble Beach and Indian Beach.
The trail is rich in natural beauty. You'll encounter diverse flora including Bishop pine, Bay, Toyon, and Oak trees, along with various ferns. Keep an eye out for huckleberries, blackberries, currants, and even banana slugs. Birdwatching opportunities are also common in the area.
Dogs are generally allowed on leash in Tomales Bay State Park, but specific trail regulations can vary. It's always best to check the current rules for the Jepson and Johnstone Trail Loop directly with the park before your visit to ensure compliance.
Yes, the Jepson and Johnstone Trail Loop is located within Tomales Bay State Park, which typically requires an entrance fee per vehicle. No additional permits are usually needed for day-use hiking or jogging on the trails, but it's always good to verify current park regulations.
The trail is mostly shaded, making it a good option for warmer days. Spring and fall offer pleasant temperatures and vibrant scenery. Even in summer, the shade provides respite from the sun. Winter can be beautiful, but be prepared for potentially wet and muddy conditions.
Yes, the route primarily follows sections of the Johnstone Trail and the Jepson Trail. It also briefly touches upon the Indian Beach Nature Trail, offering a comprehensive experience of the park's diverse paths.
Yes, throughout the run, there are scenic spots with excellent views overlooking Tomales Bay, providing picturesque opportunities to pause and enjoy the landscape.