San Venetia Marsh Open Space Preserve is a 33-acre salt marsh located in San Rafael, California. This open space preserve offers a tranquil setting for various outdoor activities, characterized by its flat terrain and a prominent levee loop trail. The landscape features marsh grasses, with scattered clusters of fennel, gumweed, coyote brush, and toyon shrubs. The preserve serves as a crucial habitat for sensitive species and provides opportunities for several sports like hiking, road cycling, jogging, mountain biking, and more.
…103
Routes
4.5
(181)
Average rating
2842
People visited

4.8
(10)
645
riders
65.4km
03:41
1,330m
1,330m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.

5.0
(6)
401
riders
80.2km
03:50
980m
980m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.

5.0
(3)
168
riders
79.2km
03:53
880m
880m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

5.0
(3)
99
riders
46.6km
02:40
1,040m
1,040m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
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4
hikers
9.90km
02:55
320m
210m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

2
hikers
8.96km
03:14
680m
360m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

2
hikers
5.79km
02:10
370m
160m
Moderate hike. Good fitness required. Mostly accessible paths. Sure-footedness required.

2
hikers
1.37km
00:21
10m
0m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
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39
runners
13.0km
01:32
280m
280m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

14
runners
11.0km
01:15
20m
20m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

1
runners
11.2km
01:51
620m
620m
Hard run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

18
runners
8.65km
01:04
100m
100m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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4.7
(18)
253
riders
21.6km
01:52
360m
360m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

5.0
(23)
66
riders
32.3km
03:17
910m
910m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.

3.8
(5)
47
riders
18.5km
01:58
570m
570m
Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.

4.7
(7)
31
riders
14.1km
01:25
370m
370m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
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5.0
(1)
30
riders
17.3km
01:38
390m
390m
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

3.0
(1)
29
riders
22.4km
01:26
240m
240m
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

5.0
(1)
15
riders
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

17
riders
79.4km
04:51
720m
720m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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4.0
(2)
35
riders
65.9km
04:42
1,010m
1,010m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

29
riders
45.1km
03:10
740m
740m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

5.0
(2)
29
riders
45.1km
03:18
770m
770m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

3.0
(1)
9
riders
38.6km
03:35
950m
940m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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San Venetia Marsh Open Space Preserve offers a variety of outdoor activities, including hiking, road cycling, jogging, and mountain biking. Other activities like fishing and kayaking/canoeing are also accommodated. The preserve features a 1.2-mile (1.9 km) levee loop trail suitable for many of these sports.
Yes, the preserve is known for its flat and accessible terrain, making it suitable for easy hikes. The 1.2-mile (1.9 km) levee loop trail is particularly well-suited for leisurely walks. For more options, consult the Easy hikes in San Venetia Marsh Open Space Preserve guide.
The preserve is considered family-friendly due to its flat and generally wide 1.2-mile (1.9 km) levee loop trail, which is also stroller-friendly. This accessibility makes it a good option for outings with children. Specific family-friendly routes can be found in the Family-friendly hikes in San Venetia Marsh Open Space Preserve guide.
Dogs are welcome in San Venetia Marsh Open Space Preserve. However, they must be kept on a leash, especially on the main levee trail. For dog-friendly routes, explore the Dog-friendly hikes in San Venetia Marsh Open Space Preserve guide.
The marsh is a crucial habitat for various species, including endangered Ridgway's Rail and salt marsh harvest mice. Birdwatchers may spot northern harriers, white-tailed kites, and red-tailed hawks. It is also one of the few locations in Marin County to find the pygmy blue butterfly.
The preserve's multi-use trails and fire roads are open to cyclists, with the 1.2-mile (1.9 km) levee loop trail offering an easy ride. This flat path is suitable for both road and mountain biking. Detailed routes are available in the Road Cycling Routes in San Venetia Marsh Open Space Preserve guide.
San Venetia Marsh Open Space Preserve is a 33-acre salt marsh dominated by marsh grasses. Scattered clusters of fennel, gumweed, coyote brush, and toyon shrubs grow along the trails. The preserve also offers views of the bay, Mount Tamalpais, and the hills of other Marin County Open Space District preserves.
San Venetia Marsh Open Space Preserve is a popular destination, with more than 24,000 visitors sharing their experiences on komoot. Activities in the preserve have an average rating of 4.66 out of 5 stars.
The preserve is managed by Marin County Parks. The primary resource for information is the Marin County Parks official website. The general phone number for Marin County Parks is 415-473-6387.
Yes, the preserve's flat 1.2-mile (1.9 km) levee loop trail is popular for jogging. Komoot offers a dedicated guide for Running Trails in San Venetia Marsh Open Space Preserve, providing detailed information on suitable routes.
The main trail in San Venetia Marsh Open Space Preserve is a 1.2-mile (1.9 km) levee loop trail. This flat and accessible path is suitable for various activities, including hiking, jogging, and cycling.

