Advice: Best type PFD for tube?

[WVDrifter]

Thanks. I don't know if I'll ever be up for a river like you describe in a tube. Maybe a kayak, if I'm with someone who knows the water.

but eventually I think there might be some portions of the Greenbrier that in the summer might be good if you biked to a secluded pool or maybe the Bluestone above the state park, and I'm sure there are others places I haven't thought of or am not familar with.
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