Wow... that's a good question.
There aren't that many places that are within easty walking distance thar are rentals. There's a few places down the road (like Jetty's East), but they are a good 300 to 500 yard walk the the beach access, and then you've got another 100 to 150 yard walk through the sand with gear to get to the Jetties.
The condo complex that is against the "beach access" (with the concrete wall), of the two buildings that are there, I don't think allows rentals. the one next to it might.
Maybe SeaYoda or someone there can do a recon run for you to see if there is anything there withing waling distance 'with scuba gear on'. I wouldn't trust the rental agency companies with their description. Just like in Ski resort towns they say "walking distance to slopes". Well walking on an icy road 300 yards in ski boots to get to the ski slopes is not really doable, where it is in a pair of hiking boots. So with scuba gear you have to factor that in also.
There is free public parking at the jetties beach acces, but it fills up quickly. Especially on the weekends.
That's one of the advtanges of the St Andrews Jetties. it's in a state park. Though you have to pay an entrance fee, it's worth it to be able to get a public beach parking spot.
anyone else have any suggestions?
BTW... you might get better responses if you ask to have your thread moved to the "North Florida/Panhandle trips" forum. Most of the panhandle divers pay more attention to that sub-forum.