This is definitely true. I just got off the Magic on Sunday. We were traveling for my parents' 60th wedding anniversary. I called Disney beforehand to inquire about it and to have it marked on our reservation (although I am not sure it this was necessary or not). The morning of our Castaway Cay day, we called down to Guest Services and were told they would make sure that a golf cart was called and would take all of us together. We just had to let them know when we were ready to head ashore. We did that and when we got off the ship we had to wait a little bit, but sure enough a golf cart came and picked us up. It took us all the way to Serenity Bay. When we were done for the day, we went to the beach rentals booth there and they called for the golf cart to pick us up. If it were not for the golf cart, there was no way my parents could have gotten off the ship. The first tram spot was too far to walk to, which we unfortunately learned from a previous experience. I am so grateful how helpful guest services was in arranging the golf cart this time as it allowed my parents to enjoy the day at Castaway Cay.