I recently spent a week in Saba, a 5 square mile Caribbean island for an assignement. Saba is part of the Netherlands and is a potentially active volcano (although the last eruption was said to be around 5,000 years ago).
There is only one road on Saba called "The Road", and it is narrow and hardly ever straight or flat. Because of the volcanic rock and geography, there aren't really any beaches or easy areas to swim. The lush landscape was just returning to its original state after the hurricanes passed through in September.
Saba also has the shortest landing strip in the world, and isn't the easiest or cheapest of the Caribbean islands to get to, so it remains a relatively tourist-free place to go. We enjoyed hiking, exploring the old abandoned buildings (the "ruins"), swinging on vines in the jungle, and roaming through the neighborhoods.
Below are some photos from our stay!