Dolphin (Mahi Mahi) push in closer to West Palm Beach than any other location in Florida. This is because the Gulf Stream Currents come closer to shore here than anywhere else. Mahi are commonly caught just a few miles off the beach. The current conditions including wind and swell direction will determine where the bait, structure and most importantly, the fish are. Mahi are caught anywhere from 60'-1000+ feet of water off West Palm Beach. Most commonly though, they are caught in 300-600 feet of water off West Palm Beach.