they're everywhere. and nothing quick about a family of paddlers at the boat launch......
the section of the colorado river that goes from willow beach to hoover dam is closed to boating sundays/mondays for kayakers and from labor day to memorial day it's closed to any boat over 65hp. for paddlers.
a preferable option to closing rivers for good. boaters get friday/saturday as a weekend. kayakers/sup's get sunday/monday and kayakers know on fri/sat they are going to deal with boat wakes.