My wife and I visited Happy Bay last year in May. We parked at Friars and walked the marked path as others have described.

The was a nice man there named Danny at a small beach shack that had drinks and he cooked lunch for us consisting of ribs, rice, potato salad, and plantains. The food was very good and Danny is a great guy and a pleasure to talk to.

No chair rentals. We brought towels and sat in the sand under some shade. The beach was beautiful and the water was warm, clear, and not rough at all. We stayed for 3-4 hours.

You can look on Trip Advisor for reviews of Happy Beach and get more information.