Some friends of mine & I are planning a May or June camping trip and considering Blanco River State Park. Just curious if you can tube it, ie are there small places that rent tubes for you?
what FAST FRED said. There are basically 2 sections of the Blanco River that is dammed up in the park. Not much flow to speak and a bit weedy in areas. I am not aware of any outfitters that service this stretch either. Nice park for fishing though.
A short drive south to the Spring Branch (281) crossing of the Guad is better suited for floating and there is an outfitter there,The Link that provides rentals, drop offs and camping spaces.