The Trolley and/or Conch Train tour are very easy to do on your own, the ticket area is right in the center of town and doing it this way will save you some $'s. Get off the ship on your own and walk into town, you can then decide what you want to do. We had plans on doing the Conch Train this past July on our own, but when we got into town the heat and humidity was so bad that after walking around for about an hour we all opted to just go back to the ship and enjoy the pool. As much as we were looking forward to the tour, the heat was just too much and we were very glad we hadn't pre-paid for it.