We booked all our tours, Swim with dolphins, Las Caletas, Dune Buggies, and golf when we got there and had no problems getting in to anything. This was during the peak season and included their \"Holy Week\" before Easter. I would not hesitate to wait until you get there to do your booking. The Las Caletas tour was the greatest ever. I could go 3-4 time each trip, my family loved the whole day!