Deer Island Open Space Preserve is a 154-acre open space preserve located in eastern Novato, characterized by a central hill rising from flatlands that were once part of the Petaluma River delta. The preserve features mixed oak woodlands, open grasslands, and views over seasonal wetlands and the marshes of Novato Creek. This diverse landscape provides a setting for several sports like hiking, road cycling, touring cycling, mountain biking, and more, with terrain ranging from relatively flat paths to routes with elevation changes.
Deer Island Open Space Preserve offers a variety of outdoor activities, primarily focused on exploring its natural features and scenic views. Hikers can find routes ranging from easy strolls to more challenging paths, such as the Deer Island Loop Trail, which covers approximately 1.9 to 2.0 miles (3.1 to 3.3 km) and offers views of the surrounding marshes. For those interested in exploring the preserve's high points, the De Borda Trail provides a steeper option with panoramic vistas. While hiking is a prominent activity, Deer Island Open Space Preserve also provides opportunities for other sports, including road cycling, touring cycling, and mountain biking, though some trails are designated for hikers and equestrians only. To discover more about specific activities, explore guides such as Hiking in Deer Island Open Space Preserve or Road Cycling Routes in Deer Island Open Space Preserve. More than 5,000 visitors have shared their experiences in Deer Island Open Space Preserve, resulting in an average rating of 4.68 out of 5 stars.
81
Routes
4.7
(100)
Average rating
1514
People visited

5.0
(2)
20
hikers
5.93km
01:42
140m
140m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

6
hikers
6.43km
02:13
400m
270m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

4
hikers
8.35km
02:28
230m
230m
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.
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155
riders
120km
05:31
1,420m
1,420m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.

5.0
(2)
227
riders
170km
08:08
1,720m
1,720m
Hard road ride. Very good fitness required. Some segments of this route may be unpaved and difficult to ride.

194
riders
181km
08:35
2,070m
2,070m
Hard road ride. Very good fitness required. Some segments of this route may be unpaved and difficult to ride.

5.0
(3)
154
riders
83.3km
03:44
860m
860m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
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11
runners
12.8km
01:27
150m
150m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

7
runners
10.6km
01:08
80m
80m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

12
runners
10.9km
01:14
70m
70m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

7
runners
7.82km
00:49
40m
40m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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2
riders
25.7km
01:41
180m
180m
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

8.99km
00:32
30m
30m
Easy bike ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.

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.

22
riders
22.5km
01:49
120m
120m
Easy bike ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
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4.8
(4)
28
riders
43.3km
04:46
1,450m
1,450m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.

5.0
(4)
32
riders
16.5km
01:33
380m
380m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

4.7
(7)
31
riders
14.1km
01:25
370m
370m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

5.0
(1)
12
riders
10.9km
01:15
370m
370m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
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9
riders
Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.

5.0
(2)
10
riders
24.3km
01:42
140m
140m
Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.

3
riders
15.9km
01:33
490m
500m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

3
riders
19.3km
01:49
570m
570m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Deer Island Open Space Preserve is a 154-acre preserve located in eastern Novato. It features mixed oak woodlands, grasslands, and offers views over seasonal wetlands and the marshes of Novato Creek. The preserve is managed by the Marin County Open Space District.
Deer Island Open Space Preserve offers opportunities for hiking, road cycling, touring cycling, mountain biking, jogging, and gravel biking. The preserve has 2 routes listed on komoot, with an average rating of 4.68 stars from more than 5,000 visitors. For more details, explore guides like Hiking in Deer Island Open Space Preserve.
The preserve offers various hiking options, including the popular Deer Island Loop Trail, an easy 1.9 to 2-mile (3.1-3.3 km) path. The De Borda Trail provides a steeper option to reach the preserve's high point for panoramic views. Many paths are relatively flat and accessible for different fitness levels.
Deer Island Open Space Preserve offers easy hikes suitable for beginners and families. The Deer Island Loop Trail is an easy 1.9 to 2-mile (3.1-3.3 km) path that circles the base of the main hill. More information can be found in the Easy hikes in Deer Island Open Space Preserve guide.
Dogs are permitted in Deer Island Open Space Preserve. Dogs must be kept on a leash while in the preserve. This policy helps protect wildlife and ensures a safe experience for all visitors.
The preserve features mixed oak woodlands, open grasslands, and seasonal wetlands. Visitors can observe diverse birdlife, including snowy egrets and white pelicans, especially over the marshes of Novato Creek. The De Borda Trail offers sweeping views to the west and of Mount Burdell from the preserve's plateau-like top.
Cycling activities such as road cycling, touring cycling, and mountain biking are listed as available in the broader region. However, some trails, like the Deer Island Loop Trail, are designated for hikers and equestrians only. Visitors should verify current regulations with the Marin County Open Space District for specific trail access. Guides like Road Cycling Routes in Deer Island Open Space Preserve are available.
Komoot offers several guides for Deer Island Open Space Preserve, covering various activities and interests. Examples include Family-friendly hikes, MTB Trails, and Running Trails. These guides provide detailed information and routes for exploring the preserve.
Deer Island Open Space Preserve is managed by the Marin County Open Space District. The official website for the district is available for more information. The phone number for the Marin County Open Space District is +1-415-473-6387.
The preserve is home to deer and various bird species, including raptors like red-shouldered hawks and white-tailed kites. Visitors may also spot barn owls, great-horned owls, woodpeckers, and coyotes. Sparrows and meadowlarks are common in the grasslands during winter.
Remnants of an 1800s dairy farm can still be found within Deer Island Open Space Preserve. These historical elements add a unique dimension to the natural landscape of the area.

