The barrier island (or presqu'isle) in the middle strikes me as odd since there's no large body of water that it is a barrier for. But now I'm intrigued at why I think that's how it works.

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Hmm you might have a point. I do see a lot of weird spits and lagoons and whatnot around Denmark (and the northeast of germany between Stralsund and Rostock) in places where they are not immediately facing huge quantities of water. I guess you need like some kind of wave action to mash sediment into that shape, but maybe there are other reasons why you might get a lot of waves other than just having a wide-open ocean in front of you.

Also conceivably those formations are really old (so that the used to be facing more wide-open water) and that interloping kidney-bean shaped continentlet down there is a relative newcomer, via either tectonic or volcanic processes? Dunno.

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Examples in my mind are the Fundy shore of Nova Scotia, which is a valley that sometimes goes below sea level and thus makes the hills into a presqu'isle.

Or the spit of land that connects Lithuania and Russia on the Baltic sea. But that's a big enough sea (relative to the barrier island) for it to be wave action.

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I was going to say, I am charmed by your barrier islands, but what forms them?

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I'll take Pickup Lines At Geophysicist Bars for 400, Trebek.

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I often become fascinated by uninhabited islands and this is my latest: http://mappery.com/map-of/Campbell-Island-Map

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That doesn't look ANYTHING like Campbell Island! The proud people of Schaghticoke will be insulted.

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