North of Del Mar City Beach is one of just a few dog beaches in San Diego, and the locals are passionate about keeping it that way. Your pup is allowed on the beach year round, and off-leash for nine months out of the year, but must be leashed from June 16th until Labor Day. While this area is mostly known for being Fido-friendly, the San Dieguito River Mouth provides a natural wading pool that is great for children to play in.