Halcyon was established in 2007, located in the Heart of Montclair serving the best Seafood in Essex County. Halcyon cuisine is Globally Inspired Seafood with a full Raw Bar & Sushi menu. One of the few restaurants in Montclair with a full liquor license. we have 15 seats on our first floor, and a full lounge on the second level. We offer a private lounge for events for every occasion.