Letarte, Maui-based swim and cover-up label, is island-hopping from Hawaii’s beaches to the New England seacoast and opening doors to its new Nantucket store. Located at 5 South Water Street, the Nantucket Letarte boutique is open daily from 10am to 8pm during peak season and will feature the entire 2010 collection of swimwear, caftans and cover-ups along with Maui-designer jewelry and the debut of the label's towels and signature lotion and oil.