Agapey Chocolate Factory and the boatyard

Stopping in Bridgetown on June 18th as part of our Southern Caribbean cruise with RCI.

We want to do the Agapey chocolate factory tour and go to the boatyard afterwards, but the tour doesn't finish until around 11:00am, is that too late to go to the boatyard? What are the chances of getting a chair and umbrella in the boatyard at that time as I've read it gets very crowded (There'll be 4 of us)

Would it be a better option to try a different beach after the choc factory or is that tour even worth doing?

Beach suggestions welcome

Looking at same information as will be there on 17th. Looking at doing Agapey if recommended, maybe then Brandons by walking, unless recommend Boatyard that late.