At the Southwest tip of the Inchmurrin island are the ruins of the 14th century castle built by Duncan the Eighth Earl of Lennox. The castle is recorded as having been completed by 1393 and the Earls of Lennox took up residence in the 14th century when they moved from their castle in Balloch during the plague. The castle was composed of three rooms, outbuildings and a courtyard.
King Robert the I is believed to have been given refuge here by the Fifth Earl of Lennox after his defeat by the MacDougalls of Lorne. King Robert the I also established a deer park here in the 14th century.
Isabella, countess of Albany and the daughter of the Eighth earl of Lennox was exiled here after 1425 when her husband, father and two sons were all executed on the same day at Stirling by King James I. She lived at the castle for the rest of her life and died on the island in 1460 after which the castle was abandoned. It is recorded that Sir John Colquhoun of Luss was killed here in 1439 during a raid led by Lachlan MacLean.
King James the IV used the castle as a hunting lodge around 1506 as did King James the VI in later years.
The Broch of Clickimin is a large and well preserved, though somewhat restored broch near Lerwick. Originally built on an island in Clickimin Loch (now increased in size by silting and drainage), it was approached by a stone causeway. The water-level in the loch was reduced in 1874, leaving the broch high and dry. The broch is situated within a walled enclosure and, unusually for brochs, features a large 'blockhouse' between the opening in the enclosure and the broch itself. Another unusual feature is a stone slab featuring sculptured footprints, located in the causeway which approached the site. Situated across the loch is the Clickimin Leisure Centre.