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Hiking trails & Routes
United States
California
Marin County

Johnstone and Jepson Loop

Easy

4.9

(3430)

14,672

hikers

Johnstone and Jepson Loop

01:14

4.20km

120m

Hiking

Step into a "Zen-like environment" on the Johnstone and Jepson Loop, an easy 2.6-mile (4.2 km) hike that winds through a lush Bishop pine forest, including the impressive Jepson Memorial Grove. You'll find yourself surrounded by diverse plant life, from ferns to seasonal huckleberries, with glimpses of Tomales Bay through the trees. This family-friendly route offers a gentle uphill on the Jepson Trail, with some steeper sections on the Johnstone Trail as it descends towards the coast, all completed in about 1 hour and 14 minutes with 388 feet (118 metres) of elevation gain.

Located in Tomales Bay State Park, this loop is a fantastic option for a quick nature escape. The trail is mostly shaded, making it a comfortable choice on warmer days, but be prepared for potentially damp and muddy conditions if you're visiting during winter. Parking is available at the state park, so plan your visit accordingly, especially on weekends, to ensure a spot.

What makes this Tomales Bay State Park walk truly special is its unique Bishop pine forest, a rare sight on the California coast, and its historical significance, honoring conservationists and botanists. The trail also provides access to quiet beaches like Heart's Desire, perfect for a picnic or wildlife observation, and features interpretive signs about local flora and the Coast Miwok people.

Last updated: June 9, 2026

Tips

Your route passes through a protected area

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Waypoints

A

Start point

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1

3.05 km

Heart's Desire Beach

Highlight • Beach

3.64 km

Jepson Memorial Grove

Forest

B

4.20 km

End point

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Way Types & Surfaces

Way Types

4.17 km

< 100 m

Surfaces

4.12 km

< 100 m

< 100 m

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Elevation

Elevation

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Weather

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Today

Monday 6 July

18°C

11°C

12 %

Additional weather tips

Max wind speed: 19.0 km/h

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Frequently Asked Questions

Where is the trailhead for the Johnstone and Jepson Loop, and what are the parking options?

The Johnstone and Jepson Loop is located within Tomales Bay State Park in Marin County, California. You'll typically find parking available at the park's main access points, which serve as trailheads for various routes, including this loop. Specific parking details are usually well-marked within the park.

Is the Johnstone and Jepson Loop suitable for beginner hikers or families?

Yes, the loop is generally considered to be of 'Medium' or 'Moderate' difficulty, making it suitable for adults and more adventurous children. The Jepson Trail portion is particularly kid-friendly. While there are gentle uphill climbs and descents, some sections feature steeper switchbacks. It's a great option for those looking for a rewarding, yet manageable, outdoor experience.

What kind of terrain and scenery can I expect on the trail?

You'll hike through mostly shaded forests, featuring a rich variety of trees like Bishop pine, Bay, Oak, and Fir. The path is often covered with a soft carpet of fir needles and leaves, making for easy walking. You'll also see abundant ferns and various berries. Throughout the hike, you can catch picturesque views of Tomales Bay peeking through the foliage.

Are there any notable points of interest or landmarks along the route?

Absolutely! A highlight is the Jepson Memorial Grove, a pristine stand of rare Bishop pines. The loop also leads to or near several beautiful beaches, including Pebble Beach, Indian Beach, and the lovely Heart's Desire Beach. Indian Beach is particularly interesting, featuring Coast Miwok-inspired structures and interpretive signs about local history and nature.

What is the best time of year to hike the Johnstone and Jepson Loop?

The trail is excellent year-round due to its extensive shade, making it a great choice for warmer days. Tomales Bay State Park often experiences a unique microclimate, offering sunny and pleasant weather even when other nearby coastal areas are foggy. During winter, be prepared for potentially damp and muddy sections.

Is the Johnstone and Jepson Loop dog-friendly?

Regulations regarding dogs in Tomales Bay State Park can vary. It's always best to check the official Tomales Bay State Park website or signage at the trailhead for the most current rules on whether dogs are permitted on this specific trail and if leash laws apply.

Are there any permits or entrance fees required for the Johnstone and Jepson Loop?

As the trail is located within Tomales Bay State Park, there may be an entrance fee required to access the park. Permits for hiking are generally not needed for day use, but it's always wise to confirm current fee schedules and any specific regulations on the official California State Parks website before your visit.

What kind of wildlife might I encounter on the trail?

Keep an eye out for various bird species, especially around Indian Beach, which is known for good birdwatching opportunities. You might also spot banana slugs, and during their season, mushrooms are abundant. The diverse forest environment supports a range of small creatures.

Does the trail intersect other well-known paths?

Yes, the route also passes through sections of the Jepson Trail and the Johnstone Trail, which are integral parts of the loop. You'll also briefly encounter the Indian Beach Nature Trail.

What should I bring for a hike on the Johnstone and Jepson Loop?

Given the moderate difficulty and potential for muddy sections in winter, comfortable hiking shoes are recommended. Bring water, snacks, and layers of clothing as coastal weather can change. Binoculars for birdwatching and a camera for the scenic views are also great additions. Don't forget to pack out everything you pack in!

Is there a particular direction that is easier or offers better views on the loop?

While the loop is manageable in either direction, hiking it clockwise can sometimes offer slightly different perspectives on the views of Tomales Bay. The trail is well-maintained, so personal preference often dictates the direction. Consider starting early to enjoy the tranquility before it gets busier.

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