West side of great dog is a dive set. There should be balls there. The south side normally has dive balls for coral gardens. The east side is a dangerous field of coral heads. Possibly nice snorkelling and an untouched beach. I have never seen balls there. That could be new. If you go looking, stay way out and be careful.
Warren S/V Scuba Doo Lagoon 50 (winner of best crewed yacht under 55 feet at the St. Thomas crewed yacht boat show).