Maryport Harbour and Marina is situated on the beautiful Lake District Coast, in the county of Cumbria. The dramatic Cumbrian coastline has the Solway Firth lapping its shores and provides excellent sailing and fishing grounds. The Solway Firth is also an area of Outstanding Natural Beauty, with numerous sites of Special Scientific Interest (SSSI) and fish breeding grounds. Maryport has its own SSI on the grass banks around the Marina, which lays host to rare flowers and butterflies, on visiting these areas please take care not to disturb or damage them.

Maryport harbour was developed around a fishing creek at the mouth of the River Ellen in the nineteenth century. The harbour prospered mainly due to the export of coal to Ireland, and exports of steel rails, bar bolts and cast iron from the Solway Iron Works. Shipbuilders' yards were also a common sight around Maryport.