Overview
Eagle Island (Irish: Oileán san Tuaidh) is a small, conical rock outcrop at the north‑west tip of the Mullet Peninsula in Erris, County Mayo. Though uninhabited, the island commands a striking presence: a solitary lighthouse perched 67 m above sea level, battered cliffs that mark the edge of the continental shelf, and a pair of nesting white‑tailed sea eagles that give the island its name. The island is not open to the public, but its dramatic silhouette can be admired from the mainland, from boat tours departing Belmullet, or from the nearby Blackrock and Ballyglass lighthouses.
History
Early construction
In 1830 the Coast Guard Service applied for a new light to aid vessels navigating the treacherous stretch between Blacksod Bay and Broadhaven Bay. After a survey, George Halpin of the Ballast Board recommended Eagle Island as the optimal site. Two stone towers – an East and a West lighthouse – were commissioned in 1830 and completed in September 1835. Their lanterns were set at the same level, 220 ft (≈ 67 m) above high water, allowing the lights to be seen from Broadhaven Bay in the east to Blacksod Bay in the south.
Storms and survival
From the moment they were built, the towers have endured the full force of Atlantic swells. During construction a great wave swept the partially built West tower and many building materials into the sea. A massive storm wall was erected on the seaward side, yet the island continued to be battered. Notable incidents include:
- 17 Jan 1836 – a rock hurled up the cliffs shattered a window 27 m high in the West tower.
- 11 Mar 1861 – a rogue wave smashed 23 panes in the East tower’s light room, washed lamps down the stairs and damaged reflectors. Keepers had to drill holes in the tower door to drain the floodwater.
- 5‑6 Feb 1850 and 29 Dec 1894 – violent gales damaged both lanterns and the sea‑wall, eventually leading to the abandonment of the East tower in 1894. Its remaining structure was truncated by 20 ft to avoid casting a shadow.
Human habitation
The 1841 census recorded two lighthouses and seven dwellings on the island. By 1911 only one dwelling remained. Families lived on Eagle Island until the end of the 19th century, when they were rehoused in Corclough on the mainland. Lighthouse keepers remained until the station was automated on 31 Mar 1988, after which the island has been unmanned.
Technological evolution
- 1968 – conversion to electric operation, increasing candlepower to 1.4 million and extending the range to 26 nm.
- 8 Oct 2001 – installation of a solar‑powered light with a characteristic of three white flashes every 15 seconds, range 19 nm.
- 1999 – the radiobeacon service, which had operated since 1937, was discontinued.
What to See & Do
The lighthouse
Only the West tower survives today, a white‑painted stone column 11 m tall. Its lantern flashes three white bursts every 20 seconds (Fl (3) W 20s) and can be seen for 18 nautical miles. Technical details are summarised below:
| Feature | Details |
|---|---|
| Height of tower | 11 m |
| Light focal height (MHWS) | 67 m |
| Light characteristic | Fl (3) W 20s |
| Range | 18 nm |
| Year lit (current tower) | 1835 |
| Automation | 31 Mar 1988 |
| Owner | Irish Lights |
While the island itself is off‑limits, the lighthouse can be viewed from the sea on guided boat trips that depart from Belmullet or from the nearby Blackrock and Ballyglass stations. The video tour by Fergus of Blacksod Lighthouse (see video link) offers a close‑up look at the remaining structure and the surrounding storm wall.
Eagle‑eagles and wildlife
The island’s name derives from the golden and white‑tailed sea eagles that once nested here in abundance. Although the original population vanished in the 20th century, re‑introduction programmes in Killarney have seen eagles return to Irish skies, and occasional sightings of breeding pairs near Eagle Island are reported each summer. Bird‑watchers can often spot the eagles soaring over the cliffs from the mainland, especially during the early morning hours.
The surrounding seascape
Eagle Island sits at a key turning point of the Erris coastline, offering spectacular views of the Stags of Broadhaven – four pyramid‑shaped rocks that rise over 70 m above sea level. The dramatic cliffs, the constant Atlantic spray, and the remote feel make the island a favourite photographic subject for visitors cruising the Mullet Peninsula.
Nearby attractions
The north‑west Mayo coast provides several complementary sites worth adding to a day out:
- Ballycroy (Wild Nephin) National Park – a vast wilderness of blanket bog, mountains and coastline, ideal for walking and wildlife spotting.
- Clare Island Abbey – the ruins of St Brigid’s Abbey on nearby Clare Island, reachable by a short ferry from Inishturk.
- Bartragh Island – a tidal island with historic ruins and a walking trail, visible from the same sea routes that pass Eagle Island.
- Bangor Trail – a challenging hill‑walk that traverses the Erris hinterland, offering panoramic views of the Atlantic and the lighthouse islands.
These sites can be combined with an Eagle Island boat tour for a varied coastal itinerary.
Practical Information
Access
The lighthouse and island are not open to the public; the Irish Lights authority restricts landing to protect the fragile habitat and the historic fabric. However, the site can be admired from the water on licensed boat tours. The nearest mainland viewpoint is the coastal road near Belmullet, where a short walk brings you to a clear outlook over the island.
Getting there
- By car: Drive the R314 to Belmullet, then follow signs to the coastal viewpoint at the Mullet Peninsula’s northern tip.
- By boat: Several local operators run half‑day tours that circle Eagle Island, Blackrock and Ballyglass. Booking in advance is recommended during the summer months.
- Coordinates: 54°17.022’ N 10°05.564’ W (decimal 54.2837, ‑10.09273).
Visitor facilities
There are no facilities on Eagle Island itself. The nearby village of Belmullet offers parking, cafés, and a visitor information centre where you can obtain brochures for boat tours and local wildlife walks.
Safety notes
The island is constantly battered by Atlantic swells; the surrounding waters can be rough. Boat operators monitor weather conditions closely and will adjust itineraries accordingly.
Further reading
- Official Irish Lights page: Eagle Island Lighthouse
- Guided‑tour information: Visit Blacksod Lighthouse – Eagle Island tours
Eagle Island remains one of Ireland’s most isolated and evocative lighthouse sites. Whether you watch it from a boat, photograph its stark silhouette at sunset, or simply imagine the lives of the keepers who once braved its relentless waves, the island offers a powerful reminder of humanity’s ongoing dialogue with the sea.