Dublin Bay · Ireland · Wreck
Guide Me II
A compact fishing-boat wreck full of marine life near the harbour
The wreck of a steel-hulled drift net fishing boat that sank after a collision off the Muglins, near Dalkey Island. Deep enough for a challenge yet diveable on Nitrox, it is a compact hull close to Dun Laoghaire Harbour.
Also known as SS Guide Me II.
Where it is and how deep
53.2708° N, 6.0564° WApproximate position — the dashed circle shows where the site lies; your operator's briefing has the mooring.
The dive
The Guide Me II lies between 33 and 38 metres, about 1.4 km east-south-east of the Muglins. The dive is timed to the tide, about 1.5 hours before high water or 1 hour before low water.
The wreck sits upright and very intact on a coarse sandy seabed, and at 26 m long it is easy to do a couple of circuits without building up too much decompression. The holds, gun platform and wheelhouse are all still intact, with lobsters and crabs, shoals of whiting and bib around the wheelhouse, and many congers in the scour pit.
The wreck
- Vessel
- Guide Me II
- Type
- Steel-hulled drift net fishing boat
- Length
- 26 m (85 ft)
- Built
- 1907
- Sunk
- 1918
- Cause
- Collision off the Muglins
- Lies
- Upright and intact between 33 and 38 m, about 1.4 km east-south-east of the Muglins
Built in Aberdeen in 1907, the Guide Me II was a steel-hulled drift net fishing boat. In 1915 the British Admiralty hired her, fitted a six-pound gun and used her as an anti-submarine coastal patrol boat. She sank in 1918 after a collision off the Muglins, the rock beside Dalkey Island, and was rediscovered in 1990. The wreck now falls under the 100-year rule, so a dive on it needs permission first.
Marine life and season
The sources we used don't single out particular species here.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Fair | Fair | Fair | Good | Good | Prime | Prime | Prime | Good | Good | Fair | Fair |
Season follows Dublin Bay: Club boats run from April to October; high summer brings the longest days and evening dives, while March has the coldest water.
Dive videos
Guide Me II · Mark Stanley on YouTube
Sources
- Dublin Bay dive guide — DUSAC (Dublin University Sub-Aqua Club)
- OpenStreetMap — OpenStreetMap
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