We went to Gumbalina Park for the monkeys and birds. After the tour, we were allowed to stay at the park for as long as we wanted. Shuttles to the pier leave every time that there are 20 people waiting to leave. I think the last shuttle is at 1:45 boat time.
Stay at the park as long as you can. It's great. The park is beautiful. There is a great pool. The beach is o.k. at the park. Take lots of pictures on the way to the park. Roatan is beautiful.