I want to replace the carpet around my pool and am looking for something that does not mildew.?

We want to replace the carpet because we spend days each summer cleaning up the mildew that forms. Does anyone have a suggestion for a good around-the-pool surface? We are not interested in concrete because the kids run around too much. From my research it looks like Kool Deck peels up and lifts in spots. We are looking for maintenance free.