Klaretjern, located in Halden, Norway, is a small but deep lake that provides crystal clear blue waters and stunning visibility. This partially sterile body of water is home to preserved trees that still have their leaves intact because it lacks the necessary microorganisms. When diving here, visitors may experience thermoclines that can make the water temperature drop dramatically, resulting in a post-apocalyptic greenish brownscape. Best of all, after a dive adventurers can cook up some spicy Shin Ramyon cooked with Klaretjern water on their camping stove for a unique and flavorful experience.