I'm looking to rent a car for a day trip that would include the Bio Bay at night with a stop to hike for a few hours at El Yunque along the way. Most on the forum suggest reserving a kayaking trip. For that, I'd need to know if they all follow the same itinerary or if there are choices and why I might pick one? Also, if I'm going to call in advance, could someone suggest some reliable tour operators? Finally, any favorite hikes in El Yunque (in the 3 hour range for 40-somethings who are in reasonable shape). Thank you much.