MichaelMc
Working toward Cenotes
No, you need an outrigger that lets the boat form a gear retrieval conveyer belt going down from the boat side, over and up to the outrigger, then back to hang over the deck. Run mechanically obviously. Boarding is two step. First, assemble subsurface and ditch excess gear on the next point on the conveyer, then move to the stern and climb up. When aboard collect gear from staging point below the deck end of the conveyer. Very simple. . Patent pending.How about this? A line for hanging bottles
ETA: Or a wire rack on tracks that extends down. You put tanks in it. When full, you release a buoy, and crew raises it up.