ceiling of a caribbean cave

adventure aquamarine attraction australia beneath blue cave cavern cavers caves caving center centre clear crystal deep destination discovery display domingo dominican end enjoyment entertainment exploration explore family fun geological green guide guided history illuminated illumination inside lake lakescape landscape light limestone nature nsw ojos oldest passage passageway path pool popular republic river rock santo scene scenery spectacular stone stream subterranean system tour tourism tourist touristic trail travel tres tunnel turquoise underground unique visit visitor wander water waters