Sennen is a coastal civil parish and a village in Cornwall, England, United Kingdom. Sennen village is situated approximately eight miles west-southwest of Penzance. Sennen parish is bounded by the sea to the west and bordered by the parishes of St Just to the north, St Buryan to the east, St Levan to the south. The Longships, a group of rocky islets situateā¦Sennen is a coastal civil parish and a village in Cornwall, England, United Kingdom. Sennen village is situated approximately eight miles west-southwest of Penzance. Sennen parish is bounded by the sea to the west and bordered by the parishes of St Just to the north, St Buryan to the east, St Levan to the south. The Longships, a group of rocky islets situated off Lands End, are also within the parish. The main settlements are Churchtown, Trevescan, Carn Towan, Sennen Cove and Land's End.