Polruan is a small fishing village in Cornwall, within the boundaries of the parish of Lanteglos by Fowey. It is bounded on three sides by water: to the north by Penpoll Creek, to the west by the River Fowey and to the south by the sea. The village is a labyrinth of steep and winding streets.

The ruin of St Saviours church on the hill above Polruan dates to the 8th century. It was a landmark for shipping, and also, in times of war, a vantage point for observing the approach of enemy shipping to the strategically important Fowey harbour.