Manor Marine is situated on the isle of Portland, located on the South West Coast of Dorset in England.

Portland Harbour is only 20 nautical miles from the main English Channel Routing Scheme and provides sheltered waters for vessel maintenance and repairs.

Portland has convenient road access to Weymouth, and the two towns share the distinction of hosting the sailing events of the 2012 Olympic Games.

Portland is world famous for its natural stone, which is found in such buildings as St. Pauls Cathedral, and is also part of the World Heritage site of Chesil Beach, the dramatic pebble beach stretching 26 miles that forms the site of the Jurassic Coast.