The 5k usually gets under way about 9ish, and depending on how quickly you go you may be to your cabana by 10ish.. I did a 10 mi bike ride during our last stop and found it nice to be able to go to the cabana and change and still feel relaxed, so I guess my point for you there is if you don't feel like you HAVE to go back to the boat to shower/ change then you save yourself some time and will be able to spend several hours enjoying your cabana...