Lighthouse Heritage and Open Days
International Lighthouse Weekend
Every August, for two days, a remarkable thing happens along coastlines worldwide: keepers and volunteers at more than five hundred lighthouses simultaneously unlock their doors, fire up their foghorns and invite the public in. International Lighthouse and Lightship Weekend — known in the amateur radio community by the acronym ILLW — began in Scotland in 1998, the brainchild of members of the Ayr Amateur Radio Group who wanted a framework for activating lighthouses as radio operating stations. Within a decade the event had spread to North America, Australia, Japan and beyond, and today it runs on the third full weekend of August each year.
What started as a ham radio exercise has evolved into one of the most visible annual showcases of lighthouse heritage. Participating stations are required to transmit their lighthouse's international reference number during contacts, generating a global log of activated stations that functions simultaneously as a radio contest and a census of accessible lights. In 2023 more than 550 entries from 40 countries were logged, ranging from Portland Bill on the Dorset coast to the Nile Delta lighthouse at Port Said.
National Open Days and Heritage Trusts
Separate from ILLW, most lighthouse authorities now stage their own seasonal programmes. Trinity House, the corporation responsible for aids to navigation in England, Wales and the Channel Islands, opens selected working towers to the public during designated weekends between May and September. Its Historic Lighthouses programme covers locations including St Catherine's on the Isle of Wight, Happisburgh in Norfolk — England's oldest working lighthouse still operated by a private trust — and the iconic Longstone on the Farne Islands, where Grace Darling lived. Guided tours cover the lamp room, the original Fresnel lens assembly and the keepers' living quarters, preserved largely as they were at automation.
In Scotland the Northern Lighthouse Board, which has maintained lights since 1786, runs a similar scheme. Its Lighthouse Visitor Programme includes access to several towers in the Stevenson family canon: Ardnamurchan (1849), the most westerly lighthouse in mainland Britain, and Kinnaird Head in Fraserburgh, where the original 1787 tower was built into a pre-existing castle. The Scottish Lighthouse Museum at Fraserburgh, opened in 1995, provides the interpretive backbone for the NLB's heritage outreach, housing a collection of Fresnel lenses, fog signal equipment and keepers' logs that spans three centuries of Scottish lighthouse-building.
The Irish Lights authority covers the Republic of Ireland, Northern Ireland and a stretch of the Scottish coast, and has steadily expanded public access to towers including Fanad Head in County Donegal, where a self-catering cottage within the lighthouse compound can be rented, and Hook Head in County Wexford, which claims to be one of the oldest operational lighthouses in the world. Hook Head runs structured daily tours year-round, attracting more than 100,000 visitors annually.
Lighthouse Societies and Preservation Groups
The institutional open days are only part of the story. Much of the groundwork — clearing vegetation, painting lantern rooms, negotiating access with harbour authorities and national parks — is done by volunteer societies. The United States Lighthouse Society, founded in 1984, has grown into the largest single organisation in the field, with a membership that runs advocacy campaigns, publishes the quarterly journal The Keeper's Log, and maintains a comprehensive database of American lights. It campaigns actively against demolition or neglect of surplus towers, lobbying for transfer to local municipalities or preservation nonprofits under the National Historic Lighthouse Preservation Act of 2000, which allows federal surplus lighthouses to be transferred at no cost to qualifying organisations.
In Britain, the Association of Lighthouse Keepers carries similar aims, organising talks, lighthouse visits and the annual Alfred Proctor Award for services to lighthouse heritage. The organisation was founded in 1988 by former Trinity House keepers facing the end of their profession as automation swept through the lighthouse service; it has since broadened its membership to include historians, photographers and maritime enthusiasts. Its annual gathering typically centres on a working or recently preserved lighthouse, giving members direct access to lamp rooms and machinery normally closed to the public.
The Australian National Lighthouse Association operates across a country where lighthouses range from the ornate Victorian masonry of Cape Otway (1848) to the utilitarian steel towers of the Northern Territory. Several Australian states have handed disused lights to local councils or preservation societies, with varying results: Split Point at Aireys Inlet in Victoria, built in 1891, runs guided tours and retains its original dioptric lens, while Cape Leeuwin in Western Australia — at the continent's south-western tip — is managed by a private trust and receives more than 200,000 visitors a year.
Living History and Interpretation
The best heritage events go beyond unlocking a door. At Boston Light, the oldest lighthouse site in the United States, rangers from the National Park Service conduct costumed interpretation year-round, dramatising episodes from the station's history — including its deliberate destruction by retreating British forces in 1776 and its subsequent reconstruction. Volunteering at Boston Light, via the Friends of Boston Harbor Islands, involves not merely guiding visitors but contributing to an active, solar-powered aid to navigation that still flashes every ten seconds.
Similarly, at Heceta Head on the Oregon coast, the lighthouse keeper's house has been converted into a bed-and-breakfast where guests wake to the fog signal and take a guided dawn tour of the 1894 tower. The resident programme at Point Arena Lighthouse in California, where volunteers can apply to serve residencies of a week or more, has created a community of informed advocates who return each year and carry detailed knowledge of the station into their own networks.
Digital Heritage and Citizen Documentation
One of the quietest but most consequential developments in lighthouse heritage has been the mass digitisation of keepers' logs, engineering drawings and wreck reports. The National Archives in London holds Trinity House correspondence dating to the early seventeenth century; the United States National Archives holds the lighthouse letterbooks of the Lighthouse Board from 1852. Both collections are increasingly indexed and, in many cases, photographed for online access, allowing researchers to trace decisions about specific towers — when a light was upgraded from oil to electric, which engineer redesigned a dangerous reef structure, how a keeper reported a shipping casualty.
Crowdsourced mapping projects, including the global lighthouse dataset on OpenStreetMap from which this site draws its data, mean that for the first time it is possible to visualise the total distribution of lighthouses worldwide — from the densely lit North Sea coast to solitary lights on Pacific atolls. Open the map to explore how lights cluster along historic trade routes, how their spacing reflects the maximum range of contemporary optics, and where the blanks remain — stretches of coast where a working lighthouse still has no documented counterpart in the open data.
Keeping the Enthusiasm Alive
The constituency for lighthouse heritage is unusual in its breadth. It encompasses former keepers with direct professional memory, engineers who want to understand nineteenth-century hydraulics, local historians researching maritime disaster, and tourists who simply respond to the combination of dramatic scenery and monumental architecture. Heritage organisations have learned to cater to all of them simultaneously.
The most successful open day programmes are those that layer their content: a technical tour of the optic for the mechanically minded, a social history panel about keepers' families for those interested in domestic life, a photography session timed for the best coastal light, a radio contact demonstration for the ILLW crowd. At lighthouse weekends run by the New England Lighthouse Foundation, all of these elements run in parallel, drawing crowds of several thousand to towers like Portland Head in Cape Elizabeth, Maine, where a lighthouse has guided ships into Casco Bay since 1791.
The challenge ahead is sustaining these programmes as the generation of former professional keepers ages out. The last manually operated light in the United Kingdom was automated in 1998; in the United States the final staffed offshore lighthouse, Boston Light, is tended by Coast Guard personnel on a symbolic rather than operational basis. The knowledge being preserved — of Fresnel lens adjustment, of fog signal maintenance, of the precise cadence of a watch-keeping routine — belongs to a world that closed within living memory. Heritage events are the primary vehicle through which it passes to the next generation of custodians.