No special access issues
No special rules, please don't leave any trash on the cave.
Drive south east of Porto Cristo to Tower del Falcon. You can park here on the turn around road. You are literally on the top of the cliff.
Access to Shrek is 200m south on an easy downclimb (blue path).
Access to Morning glory is 200m north walking along the coast. (red path)
Access to the main cave is preferable with a dry bag swimming from the right. Rappeling down is always an option, but it can be tricky to traverse in the cabe with bags etc...