How Pebble Beach Became A FavoriteLong before Phoenix existed, the Salt River was already one of the most important waterways in the American Southwest. What The Landscape Actually Looks LikeStanding at the water’s edge at Pebble Beach, the scene around you feels almost cinematic. Swimming is probably the most popular activity at Pebble Beach, and the river makes it wonderfully accessible. The Lower Salt River is genuinely famous for its free-roaming mustangs, and Pebble Beach is one of the best areas to catch a sighting. Glass containers are strictly prohibited along the Lower Salt River, and dogs must remain on a leash at all times.