Bac Mór

Island Small Scottish island in the Inner Hebrides

A small island off Scotland’s west coast nicknamed ‘The Dutchman’s Cap’ for its conical profile; boaters and birdwatchers visit for its geology and coastal views.

Main image

Bac Mòr is a small, uninhabited island in the Inner Hebrides of Scotland, part of the group of islets known as the Treshnish Isles. It is locally nicknamed the “Dutchman’s Cap” because of its distinctive rounded, cap-like shape.

The island is of interest primarily to boat trips and wildlife watchers who visit the Treshnish Isles; it has a visible domed summit and rocky shores but no facilities. Landing is uncommon and usually limited to experienced boat operators.

There is no modern permanent settlement on Bac Mòr; the island’s shape and position have made it a navigational reference for local mariners. Its human history is limited compared with inhabited islands in the Inner Hebrides.

Bac Mòr lies among the Treshnish Isle group off the west coast of the Isle of Mull in Scotland, visible from boat routes around the archipelago.

  • Also called Dutchman's Cap: Known locally as the 'Dutchman's Cap' because of its distinctive rounded summit and profile when viewed from sea.
Bac Mór
56.4603, -6.4754

How to Get to Bac Mór #

On the western isles of Scotland; access depends on which island Bac Mór is associated with (ferries and local causeways connect many Outer Hebridean islands). Nearest transport hubs are Stornoway or Oban with onward ferries.

Tips for Visiting Bac Mór #

  • Bring windproof layers - the Outer Hebrides' microclimate can change fast.
  • Check tide tables and landing permissions if planning to approach by boat.
  • Look for seabird colonies on cliffs and listen for the haunting call of the fulmar on cooler mornings.

Best Time to Visit Bac Mór #

Visit in summer for the most reliable weather and sea conditions; otherwise expect wind and rain.

Summer
June-August · 8-15°C
Milder weather and long daylight for boat travel and coastal walks.
Late spring-early autumn
May-September · 6-16°C
Best window for access with calmer seas and bird activity.

Weather & Climate near Bac Mór #

Climate
Temperature & Rainfall
Temperature Range
22°
Warmest Month
-1°
Coldest Month
Monthly Conditions

January

Weather

0.0
UV Index
Low
7.4h daylight

February

Weather

0.1
UV Index
Low
9.3h daylight

March

Weather

0.3
UV Index
Low
11.7h daylight

April

Weather

0.7
UV Index
Moderate
14.0h daylight

May

Weather

1.0
UV Index
High
16.2h daylight

June

Weather

1.3
UV Index
High
17.3h daylight

July

Weather

1.2
UV Index
High
16.8h daylight

August

Weather

0.9
UV Index
Moderate
14.9h daylight

September

Weather

0.5
UV Index
Moderate
12.6h daylight

October

Weather

0.2
UV Index
Low
10.2h daylight

November

Weather

0.0
UV Index
Low
8.0h daylight

December

Weather

0.0
UV Index
Low
6.7h daylight

Nearby Attractions to Bac Mór