The
airport transfer is USD 52 one way.
If you take a grab, is less than USD 7.
Bikes are free. But I recommend that you book them in advance, as there are only a limited number available.
Cycling along the beach is fun, and you can do it in the direction of the airport.
But as soon as you leave the immediate beachfront, there's little to see (and be prepared to see places polluted by multiple plastic wastes).
I haven't stayed at the JW Marriott, but I find the
beach at the Regent very pleasant, especially in the morning.
(you might see some horrid Instagrammers taking pictures all the time, without even staying at the hotel).