We stayed at the Hyatt Grand Cypress March 5th-9th, and the heated area of the pool was heated to 84 and the unheated area was posted to be at a temperature of 71. It was fairly chilly outside when we were there (low 70's with wind), so we stayed in the heated area. BUT, the heated area is NOT plain. Yes, it's a smaller area, but there's a small waterslide for children and it borders a cave-type area with additional (unheated) pools and several hot tubs. It's very pretty and there's plenty of room. We thought the grounds of the Grand Cypress and the pools were wonderful! There's a nice beach right by the pool area. Surrey and regular bikes for rent. Stables for horseback riding. A playground. Jogging trails. You name it, it was there.
After that, we moved to the AKL for 3 nights and loved it too!