Indian Creek Island: 25.877766987495885, -80.13578968001369. Only one bridge in and out, guarded with a security checkpoint by their own very well funded police force which patrols the island and its waterways at a rather generous 1:5 police-to-resident ratio. It is surrounded by all types of surveillance, infrared cameras, radar, and more. It is run by their own municipal government and of course, features a massive private golf course. There is nothing open to the public on that island and despite looking like any other snobby gated community it's no joke and is deceptively difficult to get there.
I think it's important for people to understand how much these people are trying to separate themselves from us. Because they're afraid of us.