The Company Shed is primarily a fishmonger, but the café side of the operation is a hugely successful sideline for owners Richard and Heather Hayward, who also have an oyster farm. Located among the salt marshes and boatyards of West Mersea, most of the catch is purchased from local fishermen, who dock just 200m along the shore. There's no kitchen and no frills here: plain, communal tables are squeezed among benches and you have to bring your own bread and wine. Order a seafood platter and tuck into half a crab, prawns (peeled and shell-on), smoked mackerel, smoked salmon and a giant, juicy crevette – all for £11.50. Lobster is often available too, along with other treats that the boats have brought in. No bookings; cash only.