New Zealand has many lakes, mostly surrounded by mountains, winding shorelines, clear lakes and pleasant scenery. It is an excellent tourist attraction. Lake Tianau, New Zealand's second largest lake, and the largest lake on the South Island. Compared with the famous "two watts" (Wakatip Lake, Wanaka Lake, Tekapo Lake), the uniqueness and ornamental nature of the landscape are slightly lower, and the popularity index is lower. Because it is on the main road to Milford Fjord, there is a endless flow of tourists passing by and transiting in the lakeside town overnight. The water planes on the lakeside take off and drop, the lake speedboats enter and exit, and the blue sky and white clouds, the lake and the mountains are interesting, and there is no charm.