Experience two of Iceland's most amazing natural wonders in one day with this exciting self-drive combo. Your adventure begins with "The Black" as you explore the magnificent Raufarhólshellir lava tunnel. This is one of the longest and most famous lava tubes in Iceland, formed thousands of years ago by a volcanic eruption. As you walk through the cave on a comfortable path, your friendly guide will show you the colorful rock walls and explain how flowing lava created this hidden world. It is an incredible way to see the power of Iceland’s volcanoes from the inside.

After your cave tour, you will drive yourself to the beautiful Þingvellir National Park for "The Blue" part of your day. Here, you will go snorkeling in the famous Silfra fissure. This is a deep crack between the North American and Eurasian tectonic plates filled with crystal-clear glacial water. The visibility is world-famous, letting you see deep into the bright blue world below while you float peacefully with the gentle current. We provide all the professional gear you need, including a warm dry suit, to keep you cozy and dry in the cold water. This trip is the perfect mix of exciting exploration and beauty, offering a unique look at the forces of nature that shape Iceland.