In my longest running save, the admirals wreck was converted into a swimming pool.
the sapphire shores has a big house on it, sand simoleon beach was turned it into a nightclub and i got rid of that dock on the other beach, it was in the way and i never really liked it because it covered half the water way. i got rid of the bar nearby that beach with the dock and turned it into a house just a maximize what i could.
i'm actually thinking of converting glimmerbrook into a place where my criminal sims would choose to live and hang out in. but right now my options are very low to consider it, i really need more worlds. it would be helpful if EA did another newcrest and brought another empty world with another 20-30 lots to play around with.