We always like to take the hop on, hop off trolleys whenever we can. We initially stayed on for the entire narrated loop, then jumped off at a point of interest. This is a very good way to get to learn the history of the city with an interesting narration and facts you might otherwise not know. This tour took you through Key West and outskirts next to the ocean. It was about 90 minutes for the entire narrated loop. The hop on, hop off feature is a plus. I purchased my tickets on line, at a slight discount, but you can also purchase same day at the ticket office. Highly recommend.