Sorry but I can only help with Atlantis. I believe you can tour the place just by going there. If you want to see the aquariums and the outside areas you will need to pay somewhere around $25pp (maybe more). You can walk around the inside (shops, restaurants, casino) for free though. If youre wanting to use the pools/slides/beach then you need to be a guest at either Comfort Suites or Atlantis. Wristbands are given out daily now (color coded) and you wont be getting outside unless you can show one of these or a room key (or if youre with a tour group). As far as distance-you can see it from the ship, but its not for walking. The water taxi is the cheapest way to get there but you will still have a walk to get to the grounds. Your best bet is a cab, or again go with the ships tour and they should provide the transportation. Ive never done the tour since weve stayed there a few times. Its a neat place and the aquariums are wonderful (have animals Ive never seen while scuba diving or visiting other aquariums), but its a huge rip off, the food isnt too great, and the staff can be not-so-helpful /friendly.