For the third time I visit this amazing place, I stayed in tulum and it is only 20 minutes away, I recommend going during the week arriving at 8 am to be able to enjoy all the attractions.
When making your reservation online ask for your Mexican discount
Another recommendation that I always give is to have a light breakfast and go to the drinks area for banana and apple since you will need a lot of energy to enjoy it to the fullest.
Be very careful in the amphibious cars when entering underground caves as it becomes a bit dangerous if you do not go down carefully