Silfra Snorkeling in Iceland offers a unique and beautiful experience, allowing visitors to swim between two tectonic plates in crystal-clear waters. While the water is chilly year-round, the stunning views and once-in-a-lifetime opportunity make it worth the discomfort. With tours providing all necessary gear and guides ensuring safety, snorkeling Silfra is an unforgettable adventure that shouldn't be missed during a trip to Iceland.