Top 9 Lakes around Lake San Marcos
Lakes around Lake San Marcos primarily center on the artificial Lake San Marcos, a reservoir originally built for irrigation. This area is known for its resort-based community and recreational water activities. The broader region includes other water bodies like Discovery Lake, offering diverse experiences from public parks to protected wetlands. The landscape features both man-made lakes and natural preserves with trails and viewpoints.
Best lakes around Lake San Marcos
- The most popular lakes include Calavera Lake, a protected wetland…
Last updated: June 28, 2026
San Dieguito Reservoir
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Calavera Lake
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Olivenhain Reservoir
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Ridgetop Picnic Area
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Discovery Lake and Trails
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Tips from the Community
Ridgetop Picnic Area offers visitors a scenic spot for a snack break with a beautiful view of Olivenhain Reservoir. Amenities here include water fill-up and a porta-potty. It is important in this area to remain on designated trails or within the boundaries of the picnic area.
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Calvara Lake is a beautiful protected wetland area and it has a small dam at the south western end. You will be able to take your bike down to the dam head to enjoy the views. The trails are dirt so as long as you have decent tires you will be fine.
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San Dieguito Reservoir is located in the middle of Rancho Santa Fe. Since it holds drinking water the entire lake is encircled by a fence. It receives its water from Lake Hodges.
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Discovery Trail circumnavigates Discovery Lake, there is also a small park and community center. Hikes can also start from here to go up to peaks like Double Peak. The park includes a Kiosk, small lake, permanent restrooms, play equipment, picnic shelter and picnic tables.
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The Ridgetop Picnic Area is a great destination for a short hike up the Way Up Trail or a great pit stop along a longer hike. It is a nice, shady spot to enjoy views of Olivenhain Reservoir. There are plenty of picnic tables, so it's a great spot to stop if you packed a lunch!
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This is a protected wetland area with a small dam. A great place to bird watch. This area is nice to visit year round.
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The Olivenhain Reservoir holds an emergency water supply for San Diego county. It holds up to 18,000 acre-feet of water and is a notable landmark as you hike through the Elfin Forest Reserve.
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The San Dieguito Reservoir has capacity of approximately 850 acre-feet of water. The Reservoir supplies water for the joint owners, the Santa Fe Irrigation District and the San Dieguito Water District. The San Dieguito Dam was constructed in 1918 and in 1948 the Dam was thickened with the addition of 12-inches of reinforced shotcrete. The hollow gravity, multiple arch dam created the San Dieguito Reservoir, which serves as a regulating reservoir when receiving water from Lake Hodges. The reservoir is not only utilized for operational storage of Lake Hodges water, but also serves as emergency storage. The San Dieguito Reservoir is closed to the public to keep the water that it holds safe and clean.
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Frequently Asked Questions
What types of activities can I do on Lake San Marcos?
Lake San Marcos is a hub for various water sports. You can enjoy boating, fishing, kayaking, stand-up paddleboarding, and even gondola rides. The Lakehouse Resort, located directly on the lake, offers a full-service marina with rentals for kayaks, SUPs, and pontoon boats.
Are there family-friendly lakes around Lake San Marcos?
Yes, Discovery Lake is a public park with family-friendly amenities such as a splash pad, picnic shelters, picnic tables, and play equipment. Additionally, Lake Calavera Preserve offers trails suitable for hikers and mountain bikers, where leashed dogs are also welcome.
Can I swim in the lakes around Lake San Marcos?
Swimming is generally not permitted in most lakes in the area. For example, swimming, wading, and the use of boats are not allowed in Discovery Lake. San Dieguito Reservoir is also closed to the public as it holds drinking water. While Lake San Marcos is used for recreational water sports, explicit swimming access is not widely available.
Where can I go fishing near Lake San Marcos?
Fishing is permitted at Discovery Lake from the shorelines or the dock. It's recommended to practice catch-and-release and use barbless hooks. A fishing license is required for individuals over 16 years of age.
What natural features can I explore around these lakes?
You can explore diverse natural features, including protected wetland areas like Calavera Lake, which is great for bird watching. Lake Calavera Preserve features ancient extinct volcano formations and offers trails through 260 acres of natural open space.
Are there hiking trails near the lakes?
Yes, several lakes offer access to trails. Discovery Lake has trail connections for walking. Lake Calavera Preserve provides trails for hikers and mountain bikers. You can also find numerous routes for hiking, cycling, and gravel biking in the broader area. For example, you can explore routes like the 'Horned Lizard Trail – Denk Mountain loop' or the 'Hodges Dam – Lake Hodges loop' for cycling. Find more options on the lakes guide page.
Are dogs allowed on trails around the lakes?
Yes, leashed dogs are permitted on trails within Lake Calavera Preserve. Always ensure your dog is on a leash and follow local regulations for other areas.
Are there good viewpoints to see the lakes?
Yes, the Ridgetop Picnic Area offers scenic views of Olivenhain Reservoir. It's a great spot for a break, with picnic tables and amenities. Many trails around the lakes also provide picturesque vistas.
What is the best time to visit the lakes around Lake San Marcos?
The lakes are generally pleasant to visit year-round. For instance, Calavera Lake is noted as being nice to visit year-round for bird watching and enjoying the wetland area.
What kind of cycling opportunities are there near the lakes?
The area around Lake San Marcos offers various cycling opportunities, including road cycling, gravel biking, and touring bicycle routes. You can find routes like the 'West San Marcos loop' for road cycling or the 'Elfin Forest Trail – Questhaven Nature Trail loop' for gravel biking. Explore more cycling options on the cycling guide, gravel biking guide, and road cycling guide pages.
Are there any lakes that serve as water supplies in the region?
Yes, both Olivenhain Reservoir and San Dieguito Reservoir serve as important water sources. Olivenhain Reservoir holds an emergency water supply for San Diego county, while San Dieguito Reservoir holds drinking water and is closed to the public to maintain its cleanliness.
What amenities are available at the lakes?
At Lake San Marcos, you'll find resort amenities including dining options, golf courses, and water sport rentals. Discovery Lake offers picnic shelters, play equipment, and a splash pad. The Ridgetop Picnic Area near Olivenhain Reservoir provides picnic tables, water fill-up, and a porta-potty.
Most popular attractions around Lake San Marcos
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Still not found your perfect lake around Lake San Marcos? Check out the guides of these regions to see even more beautiful places.
