I posted this a while back
We just did this and it was fun but it was a JOURNEY!!! We met in the Tube at 8:15 AM but did not get onto the boat ride over until 9 AM. The boat holds about 200 people and everyone going on different excursions to Playa del Carman take the same boat.
It is a 35 minute boat ride and the water is very rough ( be sure to take sea sick meds they pass out barf bags on the boat). Then they gather everyone for the Secret River excursion on the dock and you walk to vans, it takes about 20 minutes to gather everyone for the short walk to the vans. It's very organized.
The van ride over is about 35 minutes. 15 minutes of the ride is down a unpaved very hilly road. (there were tons of butterflys). You then get ready for the walk in the caves. They give everyone shorty wet suites and booties and a life jacket to wear. If I had to do it again I would not wear the wet suite. I was very hot. Most of the time the water is only knee deep. The two times we got in deep water the wet suite fills up slowly The water was not that cold, it was more painful having the wet suite fill up. I was so hot that half way through I pulled the top half down, yes I was wearing a bathing suite.. I suggest you wear shorts and a t-shirt over your bathing suite the booties and the life jacket. The tour takes about 90 minutes. I'm am very active but had difficulty walking at times I have trouble with one foot Plantar fasciitis so this did not help) My son got the walking stick but I did not. He gave me his and I really needed it. After the tour they serve a very good lunch.
Then we waited another 30 minutes for the vans to take us back. Another 35 minute ride. When you get back to the dock area you have to wait another hour for the boat to take you back to the Disney ship. There is a beach and a shopping area. We were very tired ( that could have been for the sea sick meds we took for the boat rive over.). It was now 3:30 and we were ready to go back to the ship.
It was a great tour I happy we did it but 8:15 - 5:00 was just a little to long for 90 minutes in the cave.
Here is a photo of my family swimming through the cave.
A photographer follows you through the cave. Our photos were not that good. We bought one (it was put on a CD) for $25.00