Melinda 79 your staying close to me ,just a short stroll up the beach.
In July you are surely going to have issues with mud on the road in a golfcart. My advice is just buy a weekly pass from Coastal Express, much cheaper and they run hourly and pick up and drop off on your dock.
The road adventure is in no way scenic.

White Sands Dive Shop
https://whitesandsdiveshop.com/