You can be dropped anywhere on the beach. Your choice.
Sometimes; if you're going to Margaritaville, Seastar calls the Margaritaville bus to pick you up. It's a hoot. A 1960 British Leyland former Kingston City bus all painted in wild island colours.
It runs roughly 10:30 pickup and 4:30 return.
That spot has lifeguards etc. but is very touristy and attracts cruise ship daytrippers etc.
But Seastar will make sure you get to where you want to go even in high season and will pick you up.