We are planning a winter trip to Okinawa and right now I am wavering between Nikko Alivila and the Intercontinental Manza. We'll be in Okinawa for a couple of weeks but we just want one night of resort-type luxury with a nice view, nice food, and a nice pool. The Intercontinental only has outdoor pools but when I emailed them they reassured me the pools were heated. Nikko Alivila's outdoor pools seem to be seasonal only and they charge an extra fee for the heated indoor pool. Would the weather in January be warm enough to enjoy an outdoor heated pool? Or should we book the Nikko Alivila if we really want to have a swim?