It is the longest lake in New Zealand. It is 80 kilometers long and has a long and narrow S-shaped mountain surrounded by mountains. The widest point is only 5 kilometers. It passes through the mountain wind and flows back and forth around the surrounding mountains, producing a tide similar to the cycle. With the lake surface affected by this, the lake is in a regular ups and downs, and there is a tide similar to that of rising and falling tide every 5 minutes. The average drop is more than 7 cm. "Wakatipu" is the Maori language, which means "the land where the devil sleeps." In the Maori legend, the giant robbed the daughter of the tribal chief, and the warrior Matakauri, who loved the chieftains daughter, when the giant was asleep, burned his bed and burned a big hole. The giant is deeply trapped in it, forming a lake the whole lake is shaped like a giant, head in Glenorchy, curved knees in Queenstown, and the lake rises every five minutes to represent his still remaining heartbeat.