We are hoping someone has some information about this excursion that we are interested in for our upcoming January 2020 cruise. Being that we are cruising in January, what will the water temperature inside the caves be like at that time? We've previously done the popular cave tubing tour that is done outside on the river but this is all taking place inside of a cave with both hiking, tubing and swimming. Will it be too cold?? 😳 Just hoping for any info out there. Thanks!!