Ocean One Scuba Center is a PADI 5 Star dive shop located in Walnut, California, offering swimming, free diving, and scuba diving lessons for members from teenagers to adults. Its PADI course lineup spans Open Water, Advanced Open Water, Rescue Diver, Emergency First Responder, Enriched Air/Nitrox, Dry Suit, Divemaster, and a Spearfishing course. The shop also sells and rents dive gear, including masks, fins, wetsuits, drysuits, regulators, BCDs, and dive computers, and runs boat trips.