County guide · The Castle Rolls
Best castles in Argyll
15 castles across Argyll and its islands, from Inveraray - the Duke of Argyll's seat on Loch Fyne, and the most-reviewed castle on this list - to Kilchurn at the head of Loch Awe, where the interior is closed for conservation but the lochside walk to it stays open. Offshore, Duart holds the Clan Maclean seat on Mull, and Castle Sween on the Knapdale shore is reckoned one of the oldest stone castles standing in Scotland.

Map
Every castle on this list - 15 in total, 4 free to enter, 4 you can stay overnight in

Inveraray Castle
Argyll and Bute
Seasonal Apr-Oct

Kilchurn Castle
Argyll and Bute
Interior closed for conservation; exterior walk on Loch Awe open

Duart Castle
Argyll and Bute
Seasonal Apr-Oct; Isle of Mull

Dunstaffnage Castle and Chapel
Argyll and Bute
13th-century MacDougall stronghold near Oban

Dunollie Castle
Argyll and Bute
15th-century tower ruin above Oban, ancestral seat of Clan MacDougall.

Castle Stalker
Argyll and Bute
Pre-booked tide-dependent boat tours; ~12 people/day; 2026 dates released

Stonefield Castle Hotel
Argyll and Bute
Victorian baronial overlooking Loch Fyne

Rothesay Castle
Argyll and Bute
Unique circular moated castle on Bute

Carnasserie Castle
Argyll and Bute Free entry
Free; overlooks Kilmartin Glen

Skipness Castle and Chapel
Argyll and Bute Free entry
Free castle with 16th-century tower house, Kintyre

Barcaldine Castle
Argyll and Bute
1609 tower house; B&B summer, exclusive hire winter

Glengorm Castle
Argyll and Bute
Mull; B&B and castle apartment; grounds/coffee shop public

Castle Sween
Argyll and Bute Free entry
Free; possibly Scotland's oldest standing castle

Kilmartin Castle
Argyll and Bute
Restored 16th-century castle; B&B and exclusive hire

Dunyvaig Castle
Argyll and Bute Free entry
Coastal ruin of a 13th-16th century MacDonald of Islay stronghold overlooking Lagavulin Bay.
Common questions
How many castles are there in Argyll?
This roll lists 15 visitable castles, fortresses and tower houses in Argyll. Of those, 4 are free to enter and 5 charge admission.
Which castles in Argyll are free to visit?
4 of the 15 castles in Argyll are open-access sites with no admission charge, namely Carnasserie Castle, Skipness Castle and Chapel, Castle Sween and Dunyvaig Castle.
What is the best-rated castle in Argyll?
Barcaldine Castle carries the strongest public rating of any castle in Argyll on this roll - 4.9/5 from 266 Google reviews.
Can you stay overnight in a castle in Argyll?
Yes - 4 of the castles listed here offer overnight stays, namely Stonefield Castle Hotel, Barcaldine Castle, Glengorm Castle and Kilmartin Castle.
Can you reach any castle in Argyll by train?
2 of the 15 sit within 1.5 miles of a railway station, namely Kilchurn Castle (Loch Awe, 0.6 miles) and Dunollie Castle (Oban, 1.0 miles). Those are straight-line distances from the station to the castle, so the walk on the ground is longer than the figure.
Can you go inside every castle in Argyll?
Not all of them on the same terms. 6 of the 15 restrict what a visitor can see. Stonefield Castle Hotel, Barcaldine Castle, Glengorm Castle and Kilmartin Castle are hotels, so there is no way in without booking a room or a table. At Kilchurn Castle and Castle Stalker you get the grounds or a booked tour rather than free run of the building.