The shorter one is about 2 and 1/2 hours.
I just went this past weekend. There are 2 but they are actually 6 hours and 2 hours. We specifically asked the different times tubing.
there are two trips . one is approximately 2 hours and the other 3 to 4.. plenty of time and places to stop and eat & swim. :)
We started at the Tube Pickup location and it was right around 2 hours, but there is a Bus on-site that will take you farther up the Creek which would make it even longer, probably 4 hours or so.
It depends on how far you go. They say 2 to 4 hours
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