We wanted to tour the island, but not pay the excursion price, or be subject to unwanted/long stops....just wanted to get a taste of the island. We walked the streets until we found some taxi's we liked and then started the bidding.....Mattias took us on a wonderful 2 hour tour for $40 (four of us!) He was a careful driver, took us to nice shopping at a lookout point, stopped when/where we wanted, gave us a view of both sides that only someone on the island could....a fantastic tour guide who answered all questions. Don't look at just the excursions, you might find something on your own cheaper...