Swim in the Lagoon, or sun on a floating raft in the center of the Lagoon. The Blue Lagoon is an unbelievable experience. Sail out into the turquoise water surrounded by lush green foliage or experience the temperature change as the lagoon’s mix of warm Caribbean Sea water and cold underground streams surrounds your body. Once thought to be bottomless, experts have now discovered it’s depth at roughly 180 feet. See why this magical location has been featured in many films Blue Lagoon.