Charles Island in Milford, CT can be reached from shore on a kind of sandbar known as a “tombolo” which is only exposed at low tide. Legend has it that Captain William Kidd visited Milford in 1699 en route to Boston. It is said he had some treasure buried on Charles Island. See if you can find it in the clock when the tide goes out. The Charles Island tide clock can be set to follow most semidiurnal local tides, not just Milford.