Flowing Lake (中文版： 活水湖) is a spring-fed, 11 hectare lake in Taitung Forest Park in Taitung City. Locals have nicknamed it "The World's Largest Swimming Pool". It's 2.2 meters deep, and one of my favorite places to swim. It's absolutely beautiful. I highly recommend visiting here.
Taitung County, Taitung City
Parking: 22.75822, 121.17316
Lake: 22.75821, 121.17215
Detailed Map: https://goo.gl/mbw4F5
(Fish in the ocean, not the lake)