At the Boca Del Rio park...north end of town.
You can go the beach front...and you will see it when you get to the park....big two story white building with blue trim...unless he's repainted it. Or you can go Middle St...you will see it right before you get to the ferry cut.
He opens early...6:00am I think.
I used to live next door and would watch the traffic come and go in the mornings....while I exercised on my porch....lifting my coffee cup....LOL