Mawnan Smith This shop is in the square of the picturesque village of Mawnan Smith on the outskirts of Falmouth. The shop is popular with both locals (as it's part of the community) and visitors who are holidaying in the area, one of Cornwall’s most desirable locations on The Helford River. Shop D, The Square, Mawnan Smith, Falmouth, TR11 5EP. Tel. 01326 250577.