Yeah!! That is the ticket!!
Although..up near Wimberly..there is this blue hole up near the mouth of the Guadalupe (not sure how far away from where we are staying though...will look it up)...anyway...not many people know about it and it is awesome! Also has some rocky shallow rapids and a great shallow stream to creek walk in...maybe we can check it out too if it is not too far.
I will try to find it on a map later and post the location.
Waters gonna be cold,The air aint to hot either, but I would take an extra day of to float around.
http://www.youtube.com/watch?v=2074dMBRtdg