Kilronan
53°07.3'N 009°39.6'W · Rossaveel (Galway, ferry port) (25nm)
3–8m
Depth
Fair
Holding
90m
Alarm radius
Moderate
Crowd level
Kilronan on Inis Mór (the largest of the three Aran Islands) is one of the most atmospheric anchorages in Ireland — the last landfall before the open Atlantic. The Aran Islands are famed for their extraordinary Celtic heritage: the Iron Age fort of Dún Aonghasa (Dún Aengus) perches on a 90m cliff on the south coast of Inis Mór, its walls extending to the cliff edge with no back wall — perhaps the most dramatic prehistoric monument in Western Europe. The islands are a Gaeltacht (Irish-speaking) area where traditional island culture survives. Currach (traditional wicker boat) racing is still practised. The flat limestone pavements, dry-stone walls and Romanesque churches create an otherworldly landscape. The ferry from Rossaveel (Galway) brings day visitors — the anchorage is quietest in the early morning and evening.
Best Months
Anchor Zones
Kilronan Bay — anchorage south of the pier
Fair3–8m · Alarm: 90m
Anchor in 3–7m (CD) in the bay south of Kilronan pier. Sandy bottom over limestone — holding is fair; anchors can drag on smooth limestone. Use a trip line. The bay is exposed to the south through east — in S or SE conditions the anchorage is untenable. Good protection from the N/NW and the prevailing Atlantic westerly. Tidal range approximately 3.5–4.5m springs. Passenger ferries and the Aran Islands cargo vessel use the pier — clear their approach. Atlantic swell from the SW can penetrate even in light winds.
Setting Your Anchor Alarm
90m radius for the open bay. Holding is only fair on the sandy limestone — increase scope to 8:1 and use a trip line. In any southerly wind this anchorage becomes untenable — leave immediately if the wind backs to S or SE. Atlantic swell can enter from the SW even in light winds — monitor swell forecasts carefully (Windy.com swell layer). The 90m radius allows for swell-induced yawing which is common here.
Recommended radius: 90m
Hazards & Warnings
- !Fair holding on sandy limestone — use trip line and maximum scope; check anchor is dug into sand not sitting on smooth rock
- !Exposed to S and SE — leave immediately if wind shifts to S; monitor forecast carefully during overnight stops
- !Atlantic SW swell can enter even in light winds — check ocean swell forecast (Windy.com swell layer) before anchoring overnight
- !Ferry traffic is heavy in summer — keep VHF watch and clear the pier approach at all times
- !Special Area of Conservation — anchor on sand only; do not damage the limestone pavement or reef habitats
Skipper's Tips
- ✓Dún Aengus is unmissable — the most spectacular prehistoric monument in Ireland and possibly Western Europe; hire a bicycle in Kilronan (€10/day) and cycle the 6km to the fort
- ✓Joe Watty's pub is the best venue for traditional Irish music (trad sessions most evenings in summer) — arrive by dinghy for lunch or dinner
- ✓The north coast of Inis Mór has sheltered inlets (Poll na bPéist — the 'Worm Hole' is the famous natural rock pool) — explore by dinghy
- ✓Use a second anchor or stern line ashore if any swell is running — the holding is not reliable enough for a single anchor in SW swell
- ✓The neighbouring island of Inis Oírr (Inisheer, smallest Aran Island) has a wreck of the MV Plassy dramatically perched on the rocks — remarkable sight on passage
Facilities
Anchoring Rules
- Permit:
- Not required
- Fee:
- Free
- Restrictions:
- Keep clear of the ferry pier and cargo vessel berth at all times. Ferries operate multiple daily services in summer — their movements are predictable but the pier approach requires the full channel width. Special Area of Conservation — do not anchor on reef or maerl bed habitat; seek sandy patches only.
Sleep Safely at Kilronan
Set your anchor alarm to 90m. UK tidal ranges mean your boat swings — Safe Anchor Alarm keeps watch through the night.
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