Yes that boat ramp across from the airport was going to be one of the first areas to try.If I can get a parking spot, I try to go to the Swoop Site Boat Ramp behind Disappearing Island. Much shorter idle than the causeway ramps.
Let me know when you want to go out and I'm there.
I'm booked up 8/1 & 8/2 for Scalloping but am open afterwards.
If you're interested in exploring the St. Johns River, we could go there too. It's not too far of a run from NSB.
Or maybe we can take a jaunt up to Jacksonville to try to find the rogue port-a-potty: