01
Classic river beach
Sandy Beach County Park
Along The Sacramento River Near Rio Vista • Laid-Back Riverside Sandbar • Best For Relaxed Swims And Camping
A true patch of sand on the Sacramento River with shaded picnic tables and a mellow campground vibe.
If you picture an old-school river beach, this is it: soft sand, gentle shoreline, and just enough facilities to feel easy without being overdeveloped. People spread out along the water, set up shade tents, and wander back to campfires at the small campground above the beach. Watch the current, especially with kids, and bring your own food and water for a full day by the river.
02
Delta playground
Brannan Island State Recreation Area
Delta Channels Between Rio Vista And Antioch • Active State-Park Beach And Boat Launch • Great For Boaters And Water-Sport Groups
A big, breezy Delta hub with swim areas, docks, and room for full weekends on the water.
Brannan Island feels like the Delta in one snapshot, with levee roads, boat ramps, and sloughs all converging at a busy state recreation area. A designated swim area gives you calmer water and a bit of sand, while nearby coves and channels draw anglers, paddlers, and powerboats. Expect wind in the afternoons, so pack layers and secure anything light on your picnic table.
03
Wind lover's spot
Sherman Island County Park
West Of Rio Vista Near The Antioch Bridge • Windy Delta Shoreline • Best For Kite- And Windsurfing
A scruffy stretch of riverfront sand that comes alive when the afternoon Delta winds kick in.
Sherman Island is less about lounging and more about riding the wind, with kiters and windsurfers flocking here when the forecast looks good. The beach itself is narrow and rustic, but it gives you front-row views of serious board-sport action against the backdrop of the Antioch Bridge. If you are not getting on the water, bring sturdy footwear and a windbreaker, then settle in to watch the show.
04
Family-friendly swim
Contra Loma Regional Park Swim Lagoon
Antioch Foothills • Lifeguarded Reservoir Beach • Best For Families And Casual Swimmers
An inland lake with a roped-off swim area, sandy shore, and nearby picnic lawns.
Contra Loma's swim lagoon trades river currents for calm water, sand trucked in for beach play, and seasonal lifeguards that help keep things low-stress. Families spread out along the shore while kids rotate between the water, the sand, and the grassy picnic areas just above the beach. It can get busy on hot weekends, so arrive earlier in the day for easier parking and a good patch of shade.
05
Day-trip getaway
Del Valle Regional Park
Valley South Of Livermore • Big Reservoir With Multiple Swim Beaches • Great For Making A Full Day Of It
A long, scenic lake ringed with coves, boat rentals, and wide swim beaches that feel far from the freeway.
Del Valle sits in a steep-sided valley, so once you drop in it feels surprisingly removed from the rest of the East Bay. Several designated swim areas offer sandy or pebbly shorelines, nearby restrooms, and easy access to snack spots and rentals, making it simple to turn a quick dip into an all-day outing. Summer afternoons can be hot and crowded, so think early start, sun protection, and checking current conditions before you go.