Grjótagjá is a must-visit for anyone traveling to North Iceland! This small lava cave has a rich history dating back to the 18th century and has been the home of outlaws and the site of steamy hot springs. Although you can't bathe in the hot spring anymore, the unique and beautiful setting makes it a sought-after location for Hollywood productions. It was even featured in one of the most iconic scenes in Game of Thrones! If you're looking for an otherworldly, ethereal experience, Grjótagjá is the perfect spot.