If your drift boat has either a small motor or you have good rowing ability you'll do fine around Falmouth Waquoit with it in reasonable sea conditions. You can set up either in the outflow of a bay and drift out with the flow, or set up outside the edge
of the outflow and probe the flow going past.
Much of my S. Cape fishing is in fact drift fishing where I set up, kill the motor and drift for 10-15 minutes before powering back to where I started.