Eilean Glas Lighthouse on the island of Scalpay is a gem. Tower of red and white gloss painted brickwork surrounded by dishevelled outbuildings and a huge rusty fog horn. It lies north west of the northern most top of Skye protecting shipping from the turbulent Minch waters.
One of Scotland’s first four build in the 1700’s.
Update June 20, 2018. Stephen Bamforth (@Bammosan) suggests these tanks are to store compressed air for the fog horn. Similar to the recommissioned Lighthouse on Mull of Galloway.