mysterious underwater ancient stone stairway leading into the depths illuminated by sunlight rays captivating enigma of the lost

lost magical mystery serene rays underwater discovery exploration waves tranquil aquatic deep marine heritage hidden sunbeams coral mythical sunlight abyss civilization submerged legendary secrets history depth pathway stairway scenic archaeology ruins staircase ocean enigmatic relic preserved blue nature adventure ancient architecture stone ancientruins aquatichistory marinearchaeology mesmerizing oceanfloor submergedcity underwaterworld