https://scotlandstartshere.com/point-of-interest/killantringan-lighthouse/
The Fernhill Hotel is a great base from which to explore the surrounding area including:
Killantringan Lighthouse Walk a few miles north along the headland on the Southern Upland Way and admire the gorgeous lighthouse and the peaceful beach at Killantringan – where there’s even a shipwreck to see when the water is calm.
Dunskey Castle The magnificent ruins of Dunskey Castle are picturesquely perched on a rocky outcrop jutting out into the Irish Sea.
https://www.thecastlesofscotland.co.uk/the-best-castles/magnificent-ruins/dunskey-castle/