The Story of Abercastle Harbour

A Harbour Shaped by the Sea

For centuries, the sheltered inlet of Abercastle has provided a safe haven along the rugged north Pembrokeshire coast. Protected by the natural shape of the bay, it has offered refuge to fishermen, traders and seafarers, becoming an important part of the area's economy and community life.

Today, while much has changed, the harbour remains at the heart of Abercastle. The s

A Busy Working Harbour

Long before tourism became part of Pembrokeshire's economy, Abercastle was a thriving coastal trading harbour.

Local produce including slate, grain, limestone, butter, honey and corn was shipped from the harbour to markets further afield, while coal and other essential goods arrived by sea. The harbour became an important link between the local farming community and the wider

The Fishing Community

For much of the twentieth century, Abercastle was home to a busy inshore fishing fleet.

Local fishermen worked the waters around the Pembrokeshire coast, landing lobster, crab and a variety of seasonal fish. Fishing was not simply an occupation; it was a way of life that shaped the rhythm of the village and the character of the harbour.

While commercial fishing has reduced over

Alfred "Centennial" Johnson

Few places can claim a genuine place in world maritime history. Abercastle can.

On 10 August 1876, after an extraordinary voyage lasting sixty-six days, Danish-born fisherman Alfred "Centennial" Johnson sailed into Abercastle Harbour aboard his twenty-foot dory, Centennial.

Having departed Gloucester, Massachusetts, USA, he became the first person ever to complete a solo c

The SS Leysian

The waters around Abercastle have also witnessed the power of the sea.

In 1917, during the First World War, the 3,800-ton steamship SS Leysian ran aground on the rocks just west of the harbour. Although the vessel was eventually lost, every member of the crew was safely rescued.

The wreck settled in approximately fifteen metres of water, where it became one of Pembrokeshire's best-know

Caring for the Harbour

The harbour has continually adapted to meet the changing needs of those who use it.

For many decades, local volunteers have worked together to care for Abercastle, maintaining facilities, improving access and supporting the boating community.

The Abercastle Boat Owners Association (now the Abercastle Boat Owners Community Interest Company), working in partnership with local org

‘CENTENNIAL’ A Visit to Gloucester, Massachusetts

An account by Andrew Phillips

In October 2017, while visiting family in North America, Sue and I made a detour we had promised ourselves for years: to Gloucester, Massachusetts, the port from which Captain Alfred Johnson set out in June 1876 on the first single-handed crossing of the Atlantic from west to east — the voyage that ended, against all expectation, on the beach at Abercastle.

We went to find the boat herself. Centennial survives and is held in the collection of the Cape Ann Museum in Gloucester.

The Boat

Seeing her was a genuine thrill. She lies on display in remarkably good condition. Her name is painted plainly on the side in the red, white and blue of the American flag, and her mast rests along the top of the deck. She is a Banks dory, decked over and sealed into watertight compartments to make her fit for the ocean, and she looks every bit as small as her reputation suggests.

There was a large sign asking visitors not to touch. I touched her, it had to be done! Here was the very boat that had come ashore at Abercastle, and the moment felt, if I am honest, slightly unreal.

What the Museum Records

The museum’s own interpretation tells the story well. Centennial was built by the Gloucester boatbuilders Higgins & Gifford to Johnson’s exact specification — twenty feet on deck, sixteen and a half on the keel, five and a half feet in the beam and two and a half deep. She was reinforced in oak, planked over to form a deck and watertight compartments, and rigged with a mast, bowsprit, mainsail, square sail and two jibs.

Johnson followed the North Atlantic steamer lanes, sleeping by day and sailing at night to avoid being run down by the liners. He carried provisions for ninety days. Midway across, Centennial was capsized in a gale; the buoyancy of her sealed compartments allowed him to right her after clinging on for some twenty minutes. He made his landfall at Abercastle and reached Liverpool on 21 August 1876 — sixty-six days out of Gloucester.

Asked shortly before his death in 1927 why he had done it, Johnson gave the answer that has followed him ever since: he made the trip, he said, because he was a damned fool, just as everyone had told him he was.

Abercastle, remembered and forgotten

One thing struck us. The bronze plaque on the harbour wall in Gloucester names Abercastle explicitly as his first landfall, where he recovered from being capsized. Yet the museum’s own paperwork skips from Gloucester to Liverpool, and the curators we spoke to were not aware that he had come ashore in Wales at all.

That half of the story belongs to us. Johnson was fed, watered and clothed by the people of Abercastle before continuing north — a small act of Pembrokeshire hospitality without which the voyage might have ended very differently.

Worth the journey

If you find yourself anywhere near Cape Ann, go. The museum reopened in the summer of 2026 after a major refurbishment, and Centennial is displayed alongside Howard Blackburn’s Great Republic — two extraordinary small craft in one room.

For the fuller story, Rob Morris’s book on Johnson’s crossing remains the essential local account.

One hundred and fifty years on, the boat is still there, and so is the beach.