Patricia and Stephen said it best. A local scuba instructor I know drives around the island on a quad ATV- really rough, narrow, and hilly roads from the airport to the resort. Luckily, the resort will send a driver to pick you up at the airport as a courtesy. I pretty much stuck to the beach.
There is a small grocery store close we didn’t go there but the front desk offered to take us in the golf cart.
No restrictions on your own drinks on the beach
There is also a water taxi that will take you into west end 3-5$ per person