These lakes are on the Tongariro Alpine Crossing.

The Tongariro Alpine Crossing in Tongariro National Park is one of New Zealand’s most popular day hikes, known for its spectacular views of multiple volcanic craters and dramatic landscape. One of the highlights of the 19.4 km hike is the Emerald Lakes, three picturesque small lakes created by hydrothermal activity rising out of volcanic terrain. A popular stop along the trail, the lakes’ brilliant blue, green, and turquoise water are a sight to behold. Once at the Emerald Lakes, trekkers can climb up a scenic hillside covered with yellow, orange, and red-tinged tussock mounds to get a perfect view of Mt. Ngauruhoe's peak. A hike of the Tongariro Alpine Crossing offers an unforgettable adventure experience with its epic alpine landscapes and vistas.