majestic blue hole captured underwater with diver among stalactites and rays of light in belize's depths

underwater belize diver silhouette stalactites turquoise water light shafts depth contrast abyss aquatic adventure marine dark exploration scuba ocean sea cave geology submerge clarity pristine coral reef landmark dive nature travel tourism eco blue mysterious wonder natural phenomena preservation conservation biodiversity ecosystem environment majestic serenity tranquil hidden depths tropical ai generated