You generally go left or right. We often swam out past the ball b4 dropping - around 60' Watch for a minute to see the mild current direction and start into it - it helps on the return.
The south sites are mostly flat with bushes so where we could we parked the truck behind the entry point, from water level it all looks the same.
You can't always as areas of some sites are dry protected "wet" lands, it's covered in the BMP orientation.
Straight just gets deeper and sandy in most places. Unless the site is the Hooker or Salt Pier.
Bonaire Shore Diving Made Easy
Might have some site maps
Bonaire Shore Diving Made Easy, BSDME, Author Susan Porter
Some sites south are back to back. From some you can see 2-3 more sites in either direction. At many of those the name is the differentiation, the diving is similar. There's a parallel reef in front of about a dozen of them.
The north is hillier.
Go as far as you want to walk back with your gear. People drift between the northern dive resorts regularly so you can leave gear on shore and arrange a ride. For all the theft you read about, my buddy left his $150 fins in a rinse tank - an hour later they were still there.
IDK if you read this but once you leave town/resorts, you're not going to find
any facilities.
So maybe a waterproof case for your phone? might save a long walk - unless you want the kid that will go thru the truck while you're diving to have it. They're often watching and smarter than you about hiding places.