Answer: rafted

AnswerCrossword Clue
RAFTEDTraveled the Yellowstone River
raftedRAFT, to ride on water on a floating mass
rafted(of an ice floe) Be driven on top of or underneath another floe
raftedTravel on or as if on a raft
raftedTransport on or as a raft
raftedBring or fasten together (a number of boats or other objects) side by side
raftedTransport (timber) on water in the form of a raft
RAFTEDTraveled a la Heyerdahl
RAFTEDTraveled downriver a la Huck Finn
RAFTEDEmulated Huck Finn
RAFTEDBraved the rapids
RAFTEDUsed poles
RAFTEDTraveled with Huck Finn, e.g.
RAFTEDTraveled like Huckleberry Finn
RAFTEDFloated down a river
RAFTEDDared the white water
RAFTEDUsed a catamaran
RAFTEDRode the Mississippi like Huck Finn.
RAFTEDFloated downriver
RAFTEDRode the rapids, maybe
RAFTEDTraveled on a float
RAFTEDTraveled the white water
RAFTEDTraveled downriver la Huck Finn
RAFTEDTraveled like Huck Finn
RAFTEDTook a Grand Canyon trip, say