My two stays were a 2 night and a 3 night, at the end of longer Hawaiian vacations. After the family obligation part of the trips, it was nice to do nothing at Aulani for a few days. Both were sufficient, but the extra day the 2nd time was nice. We would do the Lazy River after waking up, then shower/dress eat lunch, then in mid-afternoon head back down to the pools/river. We didn't eat at the fancy restaurants, just buffet one night. Otherwise pool bar, Olelo room, quick serve or Monkey Pod across the street. We didn't utilize the spa either. Shopping, looking for the Menehune, character photos, pool activities, sunset viewing, storytelling. We felt like we had enough time.