The Polynesian Spa in Rotorua is everything that it claims to be - providing you with amazing outdoor hot pools right on the edge of Lake Rotorua, surrounded by native bush, with three or four pools of varying heat intensity. Once you've finished soaking in the pools, you wander inside to enjoy the (very cheap on the £) spa treatments - recommend the hydrotherapy manuka honey body polish. Definitely the nicest winter spa retreat that I have ever had.
PS. Make sure you buy some of the specialised mud soap - looks bad, feels great.
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