01
Best overall pick
Brannan Island State Recreation Area
Near Isleton Along The Delta • Classic Delta State-Park Beach • Local Favorite For Full Beach Days
A roomy swim beach tucked inside a state park, with easy river access and plenty of space to spread out.
About a half-hour from Thornton, Brannan Island’s small but inviting swim beach sits on a sheltered slough, keeping waves calm and water access straightforward. Shaded picnic tables, restrooms, and nearby boat launches make it easy to turn a quick dip into a full day by the water. Go early on hot weekends for easier parking and to snag a spot close to the sand.
02
Best for simple river days
Sandy Beach Park
Rio Vista Riverfront • Low-Key Sandy River Beach • Best For Relaxed Picnics And Swims
A small Sacramento River beach with a laid-back vibe, popular with locals looking to cool off close to town.
Sandy Beach Park delivers exactly what the name promises: a narrow strip of sand, river views, and just enough infrastructure to keep things comfortable. It’s a quick drive from Thornton via the Delta bridges, making it an easy late-afternoon swim or sunset picnic option. Expect some current in the river, so keep an eye on kids and stick close to the shallows.
03
Best quiet escape
Westgate Landing Regional Park
North Of Lodi On The Mokelumne River • Quiet Riverside Shoreline • Great For Uncrowded Afternoons
A mellow stretch of riverfront with shoreline access, more about space and scenery than packed sand.
Westgate Landing is a good pick if you care more about calm surroundings than a big, built-up beach. You’ll find grassy areas, shade, and easy access to the water, with room to set up chairs along the edge on quieter days. It’s a solid choice for anglers and paddlers who want to mix a bit of wading and shoreline time with their time on the river.
04
Best for families
Oak Grove Regional Park Swim Lagoon
West Side Of Lodi • Lifeguarded Swim Lagoon Beach • Best For Kids And Cautious Swimmers
A managed swim lagoon with a sandy edge, clear boundaries, and a controlled setting that feels tailor-made for families.
When you want the feel of a beach without worrying about river currents, the swim lagoon at Oak Grove is a reliable option. The shallow, roped-off water, gentle sandy edge, and nearby grassy lawns make it easy to keep an eye on younger kids. Pair a swim session with a picnic under the oaks or a stroll around the park’s ponds for a full day out.
05
Best for a social scene
Windmill Cove Resort & Marina
Delta Channel Near Stockton • Lively Riverside Hangout • Great For Groups And Boaters
A lively marina spot with a small sandy waterfront, popular with boaters, day-trippers, and live-music fans.
Windmill Cove isn’t your quiet, tucked-away beach—it’s more of a social riverfront with a casual, resort-style vibe. A compact sandy area offers room to lounge by the water, while the marina and on-site bar and grill keep the energy up on warm weekends. It’s best suited to adults and groups who want a beachy backdrop with food, drinks, and people-watching built in.