I've posted two photos of my recent trip to the beach, and neither one showed any water. So here it is: the Pacific Ocean, just south of San Francisco.
This beach is an amazing place to go with dogs and kids. The dogs are able to run off leash, and the kids are able to climb the sandy cliffs, as well as all the usual beach things (except swim, because there can be bad rip tides and it's FREEZING). It's called "Fort Funsten" after the fort that used to be there to defend us against the Japanese during WWII. It's on Highway 1, just south of San Francisco.