Great guide with people and fish is Alfonso Graniel, Li'l Alfonse - you can check him out via this web site's "Goods & Services" - he's near the top under "Pick an Island Site" menu. You can hire him to take you to several sites around the island - his prices are quite reasonable. Recommend you book him in advance since you will be arriving by cruise ship. Good idea for Tropic to the island to buy yourself more time. Happy trip.