East Lothian, Scotland
Haddington EH41 4PY
Website www.historicenvironment.scot/visit-a-place/places/hailes-castle
One of Scotland's oldest stone castles, with red sandstone masonry dating to the early 1200s, set beside the river in a spot reviewers consistently call serene. It's free, open year-round, and unstaffed, with information panels doing the work of explaining what life here looked like.
The riverside setting — reviewers rate the walk to reach the castle, along the river, as being as memorable as the ruin itself.
The approach road narrows off the main road and can be tricky to find with a sat nav, so allow extra time — and expect some areas cordoned off for safety, which doesn't stop most of the site being explorable.
Reviewers consistently praise Hailes Castle's picturesque riverside setting and its history connected to Mary Queen of Scots, and note that it's free to visit with a well-signposted walk to reach it. Several mention some areas being fenced off for a safety inspection at the time of their visit, though this didn't stop most from recommending it, with the information panels helping bring the ruins to life.
Free riverside fortified manor, open year-round
“Interesting little castle in a good position. Some parts fenced off. Narrow road to it when you leave main road and I found it a bit tricky to find using sat nav. Free entry”— Harry Kielty, visitor review