Top 18 Lakes around San Geronimo
Best lakes around San Geronimo are located in Marin County, California, within the Marin Municipal Water District watershed. These lakes provide both water resources and natural spaces for public use. The area offers various recreational opportunities, including hiking and biking, amidst scenic natural environments. These lakes are integral to the region, supporting both essential resources and community recreation.
Best lakes around San Geronimo
- The most popular lakes is Alpine Dam, an other man-made structure constructed in 1917. It forms Alpine Lake, situated between Kent and Bon Tempe Lakes, and features a road across its top for cycling.
- Another must-see spot is Phoenix Lake, a lake that is a drinking water reservoir. Trails from here connect to other lakes in the watershed and to Mount Tamalpais State Park.
- Visitors also love Phoenix Lake, Dibley / Shaver Grade Rd Trail Junction, a lake area. Phoenix Lake is open to the public for swimming and fishing, with dogs permitted on surrounding trails.
- San Geronimo is known for its reservoirs, natural lakes, and man-made dams. The area offers a variety of lakes to see and explore, each with distinct features for outdoor activities.
- The lakes around San Geronimo are appreciated by the komoot community, with 16 upvotes and 8 photos shared by visitors.
Last updated: April 26, 2026
Bolinas to Fairfax Road
Highlight (Segment) • Trail
Narrow without shoulders but usually little traffic and those that drive are used to respect the many bikes that share the road.
Bring water, as the next fill up after Fairfax is either at Mount Tam or Stinson.
From here West Ridgecrest Road continues to climb toward the Rockspring intersection which either goes left to the summit of Mount Tam or right to Pantoll and the Panoramic highway.
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Phoenix Lake
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Alpine Dam
Highlight (Segment) • Structure
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Lagunitas Trail
Highlight (Segment) • Lake
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Phoenix Lake, Dibley / Shaver Grade Rd Trail Junction
Highlight • Lake
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Tips from the Community
Constructed in 1917 this dam forms Alpine Lake, which sites between Kent and Bon Tempe Lakes. The road across the top of the dam make it a great place to ride on a loop around the lake.
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Your description paints a vivid picture of an incredible biking experience. The road may be narrow, but it sounds like the tranquility and minimal traffic make it a perfect spot for a peaceful and scenic ride through Marin. For more info visit: https://ustransportationcompanies.com/highway/limo-car-services-in-shrewsbury-massachusetts/ Professional Limo Car Services in Shrewsbury MA
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Phoenix Lake is open to the public for swimming and fishing. Dogs are allowed on the surrounding trails, but are not allowed to swim nor drink from the water.
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Nice climb through magnificent trees and lovely lake in the middle.
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On Shaver Grade Road, you get to ride along the incredibly blue waters of Phoenix Lake.
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This is an easy gravel road along the shore of Lake Lagunitas. If you run out of water just follow the trail around the lake until you hit the parking lot where you can refill your water bottle.
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Great climb and very light traffic. It starts out steep but then is more gradual to the top!
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Frequently Asked Questions
What types of outdoor activities can I enjoy around the lakes in San Geronimo?
The lakes around San Geronimo offer diverse outdoor activities. You can enjoy hiking, biking, and fishing. Phoenix Lake is open to the public for swimming and fishing. Alpine Lake is popular for cycling around its dam, and Lake Lagunitas features an easy gravel road perfect for leisurely walks or bike rides. For more structured activities, you can explore various routes for running, road cycling, and gravel biking in the area.
Are there family-friendly lakes or trails in the San Geronimo area?
Yes, several lakes and trails are suitable for families. Phoenix Lake and Phoenix Lake, Dibley / Shaver Grade Rd Trail Junction are noted as family-friendly. Lagunitas Trail around Lake Lagunitas is an easy gravel road, making it accessible for a leisurely walk or bike ride with children.
Which lakes are dog-friendly in San Geronimo?
Phoenix Lake offers dog-friendly trails around its perimeter. However, it's important to note that dogs are not permitted to swim in or drink from Phoenix Lake itself, as it is a drinking water reservoir.
What are some good hiking trails near the San Geronimo lakes?
The area offers extensive hiking opportunities. Around Kent Lake, you can find trails through dense forests, including the Caterpillar Trail and Boulder Springs Trail, accessible from San Geronimo Ridge Road. Peter's Dam Fire Road also provides shaded views of Kent Lake. Trails from Phoenix Lake connect to other lakes in the watershed and to Mount Tamalpais State Park. For an easy option, the Lagunitas Trail around Lake Lagunitas is a mostly level gravel road.
Can I cycle around the lakes in San Geronimo?
Yes, cycling is a popular activity. The road across the top of Alpine Dam provides an excellent route for a scenic bike ride around Alpine Lake. Lake Lagunitas also has an easy gravel road along its shore suitable for cycling. For more challenging rides, consider the gravel biking routes in the area, such as the Alpine Dam – Alpine Lake loop.
Is swimming allowed in any of the San Geronimo lakes?
Yes, Phoenix Lake is open to the public for swimming and fishing. Other lakes, being part of the Marin Municipal Water District watershed and primarily reservoirs, may have restrictions.
What is the best time to visit the lakes around San Geronimo?
The lakes are beautiful year-round. Mornings can offer serene settings with reflections shimmering on the water, especially at Kent Lake. The extensive hiking opportunities through dense forests make it pleasant even on warmer days. Winter conditions are generally mild, allowing for year-round outdoor activities.
Are there any facilities like water refills or parking near the lake trails?
Yes, around Lake Lagunitas, hikers can follow trails to a parking lot where water refills are available. Parking is generally available at trailheads leading to the various lakes, though specific details may vary by location.
What are the unique features of Alpine Lake and Kent Lake?
Alpine Lake was formed by the Alpine Dam, constructed in 1917, and is known for the scenic road across its dam, popular for cycling. Kent Lake is Marin's largest reservoir and is the lowest in elevation among a chain of lakes including Lake Lagunitas, Bon Tempe, and Alpine Lake. It offers extensive hiking opportunities and serene morning reflections, with views accessible from Peter's Dam Fire Road.
What kind of natural scenery can I expect to see around the San Geronimo lakes?
You can expect diverse natural beauty, including dense forests, tranquil lake waters, and scenic viewpoints. The lakes are part of the Marin Municipal Water District watershed, providing both essential resources and natural spaces. Trails often wind through shaded areas, offering picturesque views of the water and surrounding landscapes, such as the 'incredibly blue waters' of Phoenix Lake and the idyllic forest setting of Lake Lagunitas.
Are there any easy walking routes for beginners around the lakes?
Yes, the Lagunitas Trail around Lake Lagunitas is an easy gravel road, mostly level, making it ideal for a leisurely walk or for beginners. It's a great option for those seeking a less strenuous experience while enjoying the natural beauty.
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