I've been to a few countries in the developing world at this point. Many of them have had beaches, rivers, etc in which to chill out.
However, up until Corn Island (as I understand it, mainland Nicaragua is not like this) - the local women have always dressed conservatively. In Laos, the women would bathe in the rivers wearing dresses that went from their ankles to their necks. No excess flesh was shown to us foreigners. The same in India, where holidaying big city women would run into the ocean wearing a full sari, even while their husbands got to wear underpants and t-shirts.
Corn island is not the same. The ladies here, be they latina or carribean, all tend to wear tiny tiny shorts and equally tiny tops. This was quite shocking for me at first, as it's usually the tourists who are the ones dressing like harlets.