The west coast of Scotland is the most technically demanding cruising ground in the British Isles. The combination of Atlantic exposure, fast tidal streams through narrow sounds, complex tidal gates, and restricted anchorages in remote locations requires careful planning and active pilotage at all times. The rewards — empty lochs, spectacular scenery, wildlife, and genuine remoteness — are proportional to the effort. Do not underestimate the conditions.
The Corryvreckan
The Gulf of Corryvreckan, between Jura and Scarba, contains one of the most powerful tidal whirlpools in the world. The flood runs east through the gulf at up to 8.5 knots, creating standing waves, overfalls, and the famous Coire Bhreacain whirlpool over the underwater pinnacle on the Scarba side. Corryvreckan is passable at slack water in calm conditions but is not suitable for the average charter yacht — if you are not sure, go around Jura to the west instead. The slack is brief (15–20 minutes at springs) and requires precise timing. Consult the tidal stream atlas and plan to arrive 30 minutes before slack to allow for approach.
The Dorus Mòr and Sound of Luing
The Dorus Mòr (the Great Door) at the southern entrance to the Firth of Lorne runs at 6–8 knots at springs and creates significant overfalls in any wind against the tide. This is the main tidal gate for passages north from Crinan. Time your passage for slack water (HW Oban minus 1.5 hours for the north-going stream) and give the rocks on the Craignish Point side a wide berth. The Sound of Luing, immediately north, is an easier passage with streams of 3–4 knots but requires navigating the Fladda Lighthouse transit.
The Crinan Canal
The 9-mile canal connecting Loch Fyne to the Crinan Sea Loch bypasses the Mull of Kintyre — a passage that would otherwise involve 150 miles of exposed sailing around a headland with significant tidal overfalls. The canal has 15 locks and takes 5–7 hours to transit. Maximum beam 19ft 6in, maximum length 88ft, maximum draught 9ft 6in. Pre-book passage with Scottish Canals (the passage is free but booking is required in season). Take your own crew to work the locks.
Anchorages and Sea Lochs
The west coast has hundreds of anchorages but few with facilities. The anchor technique differs from Mediterranean sailing: the lochs are deep-sided (often 20–40m close to shore) with a narrow ledge of shallower water at the head. Anchor in 5–10m on the ledge; have plenty of scope and a stern line ashore (to a tree or a mooring ring) to hold the bow into the swell from passing traffic. A dinghy and outboard are essential for exploring — many anchorages are a mile or more from any road.
Frequently Asked Questions
Q: Do I need special charts for the West Coast of Scotland?
A: Yes. Admiralty charts 2168, 2169, 2170 cover the main passage from the Clyde to the Outer Hebrides; you will also need the specific harbour and sound charts for any detailed pilotage. The Clyde Cruising Club (CCC) Sailing Directions are the essential pilot guide — a two-volume set covering everything from the Solway Firth to Cape Wrath, with detailed anchorage notes that supplement the Admiralty charts. These are available at marine bookshops and the CCC directly.
Q: Is the Corryvreckan suitable for charter yachts?
A: No, as a general rule. The Corryvreckan at springs is not suitable for the average 40ft charter yacht with an inexperienced crew. The Sound of Islay (between Islay and Jura) is an excellent alternative with streams of 2–3 knots and a straightforward buoyed channel. If you specifically want to see the Corryvreckan, do so by RIB from Crinan — several operators run trips that approach safely from outside the main tidal race.