Purdy kewl olddirtybasser.
IF you have a pontoon boat or like...a water shuttle from say / Havasu or "Castle Rock" up to Needles Bridge would be EPIC. Pull a fleet of kayaks up the river early am daisy chain style would blow my hair back.
To hire a shuttle driver is difficult and expensive because you need a trailer for the yaks. The local outfitters want to rent their kayaks...
Its a long wait and a pain in the ass doing the self shuttle...