I think we should be able to mark locations because it would make things a lot easier. Even though if you teleport to Skull Island and you can go back to where you were last, and there are life fountains, if you are in say Puerto Mico, and you have a quest in Jonah Town, it will take forever to get back to Puerto Mico because you can't teleport back to the life fountain. It would be easier if you could mark your location like in Wizard101.