Debbie, Congratulations on your cruise&#33;&#33;  By the way, for cave tubing you don&#39;t need to be a swimmer, the water is very shallow and once you are in that big tube you&#39;re going nowhere.... only down stream.  There are no rapids... it&#39;s just a spectacular gentle float down the river through huge caverns - and cavetubing.com have a swimmer with each group of 4 people and they link you each together, so you are not out there on your own like the people who do the excursion through the cruise line, these people were left to their own devices to float down the river - Ed saw this to be true as well.<br /><br />Well today and tomorrow are 14 hour days for me...........