Ruan Lanihorne is the main village, boasting a public house, The King's Head, the Parish Church of St. Rumon's, and the Parish Hall known as the Ruan Reading Room. A small river, the Ruan river, runs through the village and joins up with the Fal river a mile away.
During medieval times, the Ruan river was navigable to ships up to 80 tonnes, but gradually became silted up and today is a shadow of its former self. There was also a large castle with seven towers sited on the banks of the river, belonging to the Lercedeknes family. The family died out and the castle gradually fell down. Rumour has it that many of the cottages in the village are built with stone salvaged from the castle.
The village of Ruan High Lanes bestrides the main road leading to St. Mawes. In the village is the Roseland Plant Centre, and Poppy Cottage Garden which is open to the public. The former Hundred House Hotel, now a private house, was originally the Court House for the Roseland.
Treworga village is tucked away between the King Harry Ferry road and the main road, and is mainly residential.