Sennen parish is situated at the western tip of the Penwith peninsula and is exposed to prevailing westerly winds from the Atlantic. Geologically, it is located on the Land's End Granite, one of the five major granitebatholiths that make up the spine of Cornwall. Consequently, the parish has a bare moorland-like character with very few trees and no woodland. The parish consists of of land, of water and of foreshore. The population was 829 at the 2001 census. The church town, Sennen, is the most westerly village in mainland England and is west-southwest of London. Below the village is the harbour settlement of Sennen Cove.
Church
Sennen parish church is dedicated to St Sinninus but has also been dedicated to St John the Baptist. There has been a church here since at least the 15th century. A visit by members of the Penzance Natural History and Antiquarian Society on their annual excursion in August 1893 translated a Latin inscription on a stone at the base of the font as ″In the year of the Lord 1441 , this Church was dedicated on the beheading of St John the Baptist″. The present church has a chancel and nave, a south aisle and a north transept. A wall-painting depicting two round embattled towers was uncovered during restoration in 1867. There is also a headless alabaster figure representing the Virgin Mary in the transept. The church has a three-stage battlemented tower housing a ring of three bells. There are five Cornish crosses in the parish. One is at Escalls and another at Sennen Green. Trevilley cross is one of only two crosses with a crucifixus figure on a cross carved onto the stone. A cross on the churchyard wall came from a site near the Giant's Stone. A fine cross in the cemetery adjoining the churchyard was found in use as a footbridge near Trevear and moved to the churchyard in 1878. About 1890 it was moved to its present position.
Old customs
On the old Christmas Day in the 1830s the farmers of St Sennen assembled for the festivities. One of the dishes was a pie made from 24 blackbirds. At midnight the young men went out to see the ‘cattle kneel’ and on their return they threw rushes onto the fire. The number of crackles, or the particular form assumed. told the fortunes of those who threw them into the fire.
