Gave it a solid 5 stars because diving into this cave and taking a swim was a blast! We visited on December 28th, and despite the cool weather, the cave was surprisingly warm inside. Snorkel gear rental was budget-friendly, and we had a good 2+ hours of underwater fun. Only cons is that after the changing room, you have to leave your clothing on picnic tables and walk your way in your swimming suit and snorkelling equipment (no place for sandals inside the cave or for towels. They should work on improving this. Also the reservation system is not friendly if you want to cancel a booking you have to call them. This is an issue if you live outside USA. But in general it was a great experience.