Wow! Great picture (well, ok, I am a pilot so this really appeals to me!)
Reminds me of landing at Everglades City in the (duh) everglades near Marco Island....tiny runway with water on three sides... actually had a boat stop for me while I was on approach so I wouldn't hit is mast.
Can only imagine the fun of water on four sides, with the runway slowly dissappearing. You could probably land a little cessna 152 or 172 on that remaining runway but I don't think you could get it back in the air so those guys are certainly trapped!
Like the fact that all the planes and cars are all on the "high" ground...probably a couple feet higher than the rest of the runway.
FD