Went on the rain forest tour in July through Carnival. I am assuming that HAL uses the same company. The tour was good, except for the ride. We spent 45 min each way going to the forest. The forest was nice, but I was not falling to the floor in amazment of it.Through the tour, we only got two hours at the forest and it was not enough for the cost of it. However, if you go private, make sure of the time on the tour, you don't want to miss the boat...
Good luck,
Joe R