Based on the new Bing Aerial I assume that it isn't abandoned, I'm unsure in the south part of it, I think that we need one more new aerial from another background to clarify that it isn't so. I don't think Mangroves grow quickly to look like a standard residential garden bush & I would be surprised if the ones potentially cut down reemerge in the same spots in the next new aerials. Still the site doesn't look well maintained compared to other tidal marinas in the world, but the boats likely is, more so when the marina is dry. The river here has a high amount of sediments pumping out into the Firth which collects along the shore which grows the mangroves into place & overtime this shows as newly gained land as the shore moves cos of them & this Marina later is too far inland for to effectively run unless the town moves with it. I'm adding the following tags: tidal=yes, water=river & intermittent=yes to it for now. Also do you think the River Mouth & Shoreline South of it should shift?