We'll start the day with a visit to Raufarhólshellir, more commonly known as The Lava Tunnel, one of Iceland's longest lava tubes. The formations and colours inside the 5200-year-old lava cave are breathtaking. We then visit the Mars-like landscape of Krýsuvík with its steam vents and bubbling mud-pots. Afterward, continuing on to the nearby Gunnuhver geyser and Reykjanesviti lighthouse. Now for the true highlight, we come to Blue Lagoon to wind down in the relaxing blue waters after a day of exploring. Included in your premium entry to the Blue Lagoon is their world renowned silica mud mask, two drinks of your choice at the swim up bar and use of a towel and bathrobe.