Explore the ancient caves of Hang Son Doong, Vietnam. Hang Son Doong is one of the largest caves in the world and features a fast-flowing underground river. For spelunkers, exploring Hang Son Doong is the equivalent of scaling Mount Everest.
Lake Retba also known as Lac Rose meaning Pink Lake, lies north of the Cap Vert peninsula of Senegal. Named for its pink waters caused by Dunaliella salina algae and is known for its high salt content, up to in some areas.
Near Gainesville Devil's Den Resort & Springs, Williston, FL. Walk down these steps and take a dip into a top secret pre-historic pool. One of the world's most epic natural dive spots, right here in the USA