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Mullet Peninsula

A low, flat, treeless Gaeltacht peninsula in north-west Mayo, with empty beaches on both sides and machair grassland between.

Updated 21 October 2026

WhereMayo
Nearest cityBelmullet, at the neck; Ballina about 60 km
Best seasonMay to September
Time to allowA day
Getting thereR313 from Bangor Erris to Belmullet, then minor roads south; car
EntryFree

The Mullet hangs off north-west Mayo as a thin strip of land almost thirty kilometres long, joined to the mainland by a neck at Belmullet so narrow that a canal was cut through it. It is low, flat and almost entirely without trees - the wind off the Atlantic prevents them - and much of it is Gaeltacht. Between the exposed western shore and the sheltered Blacksod Bay side lies machair, a rare coastal grassland that forms on shell sand and supports large numbers of wildflowers and ground-nesting birds; corncrakes still breed here. Beaches run along both coasts, most of them empty even in August, and the Inishkea islands lie offshore, abandoned in the 1930s after a drowning disaster and now grazed and full of seals and barnacle geese.

Highlights

  • The machair - rare shell-sand grassland with wildflowers and corncrakes.
  • The empty beaches - on both the Atlantic and Blacksod Bay coasts.
  • The Inishkea islands - abandoned in the 1930s, now seals and barnacle geese.
  • Blacksod lighthouse - the granite light at the southern tip.

When to go

May to September; corncrakes call from late May, and the machair flowers in June and July. Wind is constant and there is no shelter anywhere on the peninsula.

Good to know

No lifeguards on the beaches and strong Atlantic currents. Machair is fragile and ground-nesting birds are easily disturbed - keep to tracks and dogs on leads. Very limited services outside Belmullet.

Nearby

Belmullet is at the neck; Erris Head is north and Achill south across the bay.

Key facts

Location54.2076° N, 10.0492° W · map

Source: Wikidata, item Q693128, read on 18 October 2026.

What to pack for Mullet Peninsula

Chosen from what this place is for. Tap a kit for the full checklist.

  • Broken-in walking shoes or boots - Grip and ankle support matter more than looks; never hike in brand-new boots. Find on Amazon
  • Reef-safe sunscreen - High SPF that will not bleach the coral you are swimming over. Find on Amazon
  • Layers + a waterproof shell - Mountain weather turns fast; a packable rain jacket saves the day. Find on Amazon
  • Quick-dry towel - A microfibre towel packs small and dries in minutes. Find on Amazon

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Plan your trip

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