The closer, deeper pool was very slimy when we visitied mid winter 2013. Would need a clean and a refill with the hose. Hose was still running hot water from the nearby hot spring. Hose was in the shallower, clean tub next to the deep one. Didn’t want to mess with the process, and the warmer of the two pools would have only been about 37 degrees. BUT! I will be back, as this is my friend’s favourite pool in NZ, so it MUST be good sometimes.