I've been on the Atlantis submarines 4 times. I've really enjoyed the beautiful fishes and the thrilling ride getting to the submarine. I don't scuba dive but thanks to Atlantis still have the opportunity to go all the way down there to witness the Aruba underwater life.
Just curious, but is there anything that you would see on the submarine tour that you would not see on a snorkelling trip (i.e. is the underwater life different further down)? In other words, is it worth the extra $ to go on the submarine trip as opposed to a snorkeling trip?