On land an Alligator will usually move out of your way if the situation warrants. You may need to wave your arms, stomp your feet, something will convince him to move, even if just a few feet.

In the water they feel it’s your problem, so you do something.
Unfortunately this was the deeper channel, shallows on the sides, and he was broadside us.

Ultimately there was enough room to get by.
He won.