Port Navas saw considerable expansion in the mid 19th century with the construction of Higher Quay, now home to the Port Navas Yacht Club, and later Lower Quay. The quays were used to offload lime and ship stone from the granite quarries around Constantine. The Duchy Oyster Farm raised oysters in Port Navas for more than a century. Although they closed in 2017 but it’s hoped that a new tenant will be starting operations there again soon.
There’s lots more information about Port Navas on the village website: portnavas.com