Delve underground and discover a hidden world of subterranean caverns on this 6-hour Cova de Coloms sea caving adventure in Mallorca. Pull on your wetsuit and swim out from the seashore toward the cave mouth with your guide. Head inside and admire subterranean lakes and stalagmites formed from millions of years of mineral deposits. Walk, crawl and swim through the network of caves, and marvel at the ancient rock formations you find. Enjoy personal attention from your guide on this small-group tour, limited to 10 people per guide.