Not very useful since my wedding is in PR but we are renting two vans and driving to El Yunque (only rainforest in US) for a day trip. We can "rent" a park ranger for a guided tour and picnic. We are also renting a boat for a day long snorkeling trip the day after. In PR its about $1800 and includes lunch, all you can drink, music, and equipment. I found most of my information from tourist industry websites and my own trips to PR.