Works in: 1.8 and 1.9
This island would serve as a fine survival spot on its own, carrying a handful of trees, sugar cane, and wolves. To sweeten the deal, though, there's a stronghold just next door. Some other points of interest include:
Two ocean monuments at 711, 62, -281 and 200, 61, -217.
An underwater mineshaft at 936, 29, -278