Earlier quoted context omitted.
One of these: http://www.junglehammock.com/ and a nice Kayak is your key to staying on any coastline or island. If there's nobody there... then nobody will mind. Ownership = headache.
Holy crap I hope those are nice. The cheapest hammock they offer costs several times the most expensive tent I've ever purchased. When I kayak camp I generally just bring a tarp and a self-inflating pad.
You need a sleeping bag to put in the hammock too too, but most people have those. =