Shuna is approximately 3 miles long, and one and a half miles wide, covering an area of over 1000 acres. The island is 20 miles south of Oban, between the mainland and its larger neighbour of Luing. The short boat trip from the mainland takes around twenty minutes. There are countless rockpools and natural streams, woods and glens to explore. The island has no roads, cars or mains electricity. The surrounding seas are safe in good weather, and the climate is generally mild, sharing the benefit of the Gulf Stream with the rest of the west coast. The main architectural feature is the ruined castle - a classic Victorian neo-gothic masterpiece.