“It’s listed, consistently in the top five dives in the world,” according to Murray Johnson, an avid world traveler and certified scuba diver. Silfra Fissure is located on the Northern tip of Thingvellir Lake, which is Iceland’s largest body of water. This Unesco World Heritage Site is only a 35-minute drive from Reykjavik. What’s most noteworthy about this site is that Divers and Snorkelers can swim in between this continental divide, which marks the point where two massive tectonic plates are diverging in the middle of Iceland.