1. Silfra: Snorkeling with Underwater Photos & Pickup Service
This wetsuit snorkeling tour in Silfra fissure located in the UNESCO World Heritage Site of Thingvellir National Park is an out of this world adventure and a hidden natural wonder, where the 100 meter underwater visibility and bright colors make the experience almost unrealistic. The pristine water in Silfra is one of the purest and clearest waters you’ll find on the planet. When snorkeling in Silfra, you are traveling between two continents, ending the tour in a lagoon often called "the real blue lagoon" because of the bright blue color of the water. Snorkeling in Silfra fissure, where you are guided into this magnificent scenery is a total must-see for all nature and adventure thirsty individuals and groups. You have more freedom in terms of movements and are able to free dive by holding your breath. You will stay dry underneath your drysuit or, for the more adventurous, choose the wetsuit to feel the natural cool waters. The wetsuits used are 6 millimeter in thickness and isolate the body well from the cold water.