From surf-ready shore break to calm lakes, Southern California is packed with places where dogs can cool off. Here are some of the best “doggie swim” spots, plus what to know before you go.
Huntington Dog Beach, Huntington Beach
If you picture dogs surfing, you’re probably picturing Huntington Dog Beach. This stretch of sand between Seapoint and 21st Street is one of SoCal’s most famous off-leash dog beaches, with easy access off Pacific Coast Highway and a long, sandy shoreline where pups can run and play in the waves.
Dogs are allowed off leash in the designated dog beach zone as long as they’re under voice control. You’ll find restrooms, showers for rinsing sandy paws, and paid parking in nearby lots.
Why it’s great for swimming:
- Consistent waves for water-loving, confident swimmers
- Deep sand for high-energy zoomies
- Regular dog-surf events that are fun to watch, even if your pup is not a surfer
Bring: a long line for new swimmers, fresh water, and a towel—this beach can be salty, sandy chaos in the best way.
Rosie’s Dog Beach, Long Beach
Rosie’s Dog Beach is Long Beach’s only legally off-leash stretch of sand, a roughly 4-acre zone along Ocean Boulevard between Granada and Roycroft avenues. Dogs must be leashed on the way in but can romp off leash within the signed “Dog Zone.”
Hours are typically 6 a.m. to 8 p.m. daily, and the vibe is friendly and neighborhood-y, with lots of repeat local dogs who know the routine.
Why it’s great for swimming:
- Gentle shore break compared with more open-ocean beaches
- Compact, clearly marked off-leash area, which makes it easier to keep eyes on your dog
- Close to city amenities if you want to grab coffee or lunch afterward
This is a good choice for sociable dogs and humans who like a more urban, walkable setting.
Fiesta Island, Mission Bay, San Diego
Fiesta Island in Mission Bay Park might be the closest thing SoCal has to dog heaven. The sandy peninsula is open from 4 a.m. to 10 p.m. and includes a massive off-leash area where dogs can run, swim, and roll in the sand to their hearts’ content.
According to the City of San Diego, dogs are allowed on or off leash in designated sections, and there’s a large fenced off-leash area as well.
Why it’s great for swimming:
- Calm bay water that’s ideal for beginner canine swimmers
- Shallow areas for wading plus deeper water for confident dogs
- Huge open space for long fetch sessions along the shoreline
The tradeoff: minimal shade and few services, so pack water, a bowl, and sun protection for both of you.
Coronado Dog Beach, Coronado
On the north end of Coronado’s famous white-sand shoreline, near Sunset Park, you’ll find a dedicated dog beach that’s off-leash year-round. Outside that zone, dogs are not allowed on the sand at all, even leashed, so it’s important to follow the signs and keep your pup leashed until you hit the off-leash area.
Why it’s great for swimming:
- Beautiful views of Point Loma and the Pacific while your dog plays in the surf
- Long, wide beach with plenty of space to spread out
- Typically good wave action for dogs that like to body surf
Parking can be tight on weekends, so go early if you can. The sand can get very hot, so do a “five-second hand test” before walking long distances.
Castaic Lake, northern Los Angeles County
If you’d rather trade ocean waves for freshwater, Castaic Lake Recreation Area north of Los Angeles is a good bet. The reservoir and its surrounding 11,000-plus acres of parkland are popular with boaters, anglers, picnickers—and yes, dogs.
Travel and pet guides call out Castaic as one of California’s better dog-friendly lakes, with opportunities for dogs to swim in designated areas and enjoy the shoreline, though specific access can vary by season and water level.
Why it’s great for swimming:
- Freshwater alternative if your dog has sensitive skin or you want a break from salt
- Lots of hiking and picnic spots to turn a dog swim into a full day trip
- Cooler temps than the city on some summer days
Check current rules before you go—some state water bodies adjust dog access or swimming zones depending on conditions.
Before you go: safety and etiquette
Wherever you swim, a little prep keeps the day fun:
- Check current rules: Dog regulations and hours can change, especially with new local ordinances or seasonal restrictions. Always confirm on the official city or park website before you drive.
- Watch water quality alerts: Skip swimming if there are posted warnings about bacteria or harmful algal blooms. Lakes and bays are more prone to this during hot weather.
- Pack the basics: Fresh drinking water, a collapsible bowl, poop bags, a towel, and (for strong swimmers in deeper water) a canine life jacket.
- Mind other beach users: Keep your dog leashed until you’re inside an off-leash zone and only let them approach other dogs or people with permission.
With the right spot and a little planning, Southern California can be a giant, sun-warmed splash pad for your dog—from surfing in Huntington Beach to paddling the coves of Mission Bay or cooling off at a lakeside picnic.
