Almost all agencies in El Nido offer the same tours at the same price, which means that you can find up to 10 boats at the same place. My recommendation is to get more people to fit in a boat and do a private tour . The boats depart at 9 am and return at 4 pm, and it is best to leave as early as possible to avoid the heat. The tour that is the most popular is to visit: Secret Lagoon, small lake, Laguna Grande. When we arrived at the big lagoon there were already 15 boats anchored, so we told the guide that we wanted to leave and come back later. It was a great idea because we got to it and it was empty we were exploring it for a while, one with the boat, others, snorkeling, and there are many small caves and a big lagoon.