Reserved and paid for the English speaking tour in advance online. Our guide was very knowledgeable and professional which made for an outstanding tour. The tour took us on a tram through the preserve (land-crabs, termite mounds, and iguanas), to a rocky beach area, lighthouse (breathtaking views all around and were able to see bioluminescent dinoflagellates kept there), and mangrove forest (use bug spray here). Low impact tour; the tour is mostly on the tram with little walking. Would return.