Overview
Rathlin is Northern Ireland’s only inhabited offshore island, and its basalt cliffs hold the largest seabird colony in the North. About 140 people live here year-round, six miles off the Antrim coast across the Sea of Moyle, and the island keeps its own unhurried pace. The rock is the same volcanic basalt as the Giant’s Causeway, weathered into steep cliffs and sheltered sandy bays. Its L-shape – roughly six miles long and a mile wide – means you can see most of it on foot or by bike in a day, with the puffins and the RSPB seabird centre as the reason most people come.
Getting there and island essentials
The ferry runs from Ballycastle Harbour and takes around 30 minutes on the fast boat or 40 on the car ferry, with several sailings a day year-round. There are two vessels: the Kintra II, a fast catamaran carrying 82 foot passengers (no luggage, bikes or prams), and the Spirit of Rathlin, which takes 141 passengers and is wheelchair-accessible and carries vehicles, luggage and bikes. Book online in advance at rathlin-ferry.com – this is not a turn-up-and-hope crossing in summer. As of February 2026 the fares are £8.40 adult single, £4.20 child single, and £4.60 for a bicycle return, with under-5s free. One catch worth knowing: you can only bring a car if you’re staying six nights or more, or hold a Blue Badge and book ahead, so most day-trippers leave the car in the pay-and-display at Ballycastle Harbour.
Once you’re on the island, plan to be self-sufficient. There’s no ATM – you can get cash at Island Treasures or the Post Office, and only Pound Sterling is accepted. Mobile coverage is patchy rather than absent, and Wi-Fi is available at many of the accommodation providers and some public venues. The Boathouse Visitor Centre at Church Bay is the place to start: café, exhibition, and information on the island’s minibus service, with public toilets there but none at the pier. Pack a waterproof, decent shoes and a water bottle.
Walking and cycling
The island’s single lane, with its passing places, makes it good for slow travel, and the walking routes are signposted and mostly gentle, though some coastal paths need care near the cliff edges. Pick up a map at the Boathouse before you set off, as the trail names and distances vary between sources.
- The Rathlin Trail is the main long walk, linking the harbour with the lighthouses.
- Roonivoolin Loop skirts the nature reserve with quiet views of Ally and Ushet lakes.
- Kebble Cliff Walk delivers the most dramatic coastal scenery and the best cliff-top vantage points for birdwatching.
- Kinramer North and South wind through varied inland terrain with occasional rocky sections.
For two wheels, bike hire is available (book ahead on 028 2076 3954, or through Soerneog View Hostel). The compact size and light traffic make cycling one of the best ways to get around, but summer demand is high, so sort a bike before you board the ferry.
Wildlife and nature
Designated a Special Area of Conservation, Rathlin is a stronghold for seabirds and marine life. It hosts the largest seabird colony in Northern Ireland, with puffins present from April to July at the western cliffs, and guillemots, kittiwakes, razorbills and gannets packed onto the ledges. The RSPB West Light Seabird Centre is open from Easter to the end of August (sometimes into September), and the Puffin Bus (cash only) meets the ferries and runs out to the centre in season – the easiest way to reach the best viewing without the walk.
Grey and harbour seals haul out at Mill Bay, Doon Bay and Ushet Port; early morning or late afternoon gives the best chance of seeing them. The Kebble and Roonivoolin reserves protect sensitive habitats, so stay on the marked paths and keep dogs on leads through the nesting season.
History and heritage
Rathlin’s strategic position drew trouble for a thousand years. In 795 AD Vikings launched the first recorded raid on Irish soil here. In 1306 the exiled Scottish king Robert the Bruce took refuge on the island; local tradition holds that he watched a spider rebuild its web in a cave, took heart, and went on to win at Bannockburn. In 1575 the island was the scene of the Rathlin Island massacre, when English forces – Sir Francis Drake among them – killed hundreds sheltering here. And in 1898 Guglielmo Marconi sent the world’s first commercial wireless telegraphy transmission from the East Lighthouse to the mainland. The Boathouse Visitor Centre pulls the threads together, with displays on the island’s history and shipwreck artefacts.
Planning your visit
A full day covers the highlights, but an overnight stay lets you have the island to yourself once the day-trippers have gone. Start at the Boathouse Visitor Centre, take the Puffin Bus out to the RSPB West Light Seabird Centre for the cliff colonies, then walk east towards Bruce’s Cave and Mill Bay, stopping at McCuaig’s Bar for a pint and a bite.
Book beds well ahead – accommodation is limited to B&Bs, self-catering, a hostel and glamping pods, and July and August fill months in advance. Camping and motorhomes aren’t permitted. Check the ferry timetable before you travel, since crossings can be cancelled in a heavy swell, and pack an extra layer whatever the forecast – the Atlantic wind turns quickly, even in summer.