South Foreland Lighthouse is a Victorian lighthouse on the White Cliffs of Dover at St Margaret’s Bay in Kent, built to guide ships safely past the Goodwin Sands and, according to the National Trust, the first lighthouse in the world to shine an electric light, in 1858. Guglielmo Marconi’s team also recorded the first ship-to-shore radio transmission here in 1898. Decommissioned in 1988 and now cared for by the National Trust, the lighthouse opens for guided tower tours, with free entry to the grounds and a 1950s-style tearoom. There is no general car access: most visitors walk 2 miles along the clifftop from the White Cliffs of Dover visitor centre, or about a mile from St Margaret’s.
- History of South Foreland Lighthouse
- Visiting South Foreland Lighthouse: Practical Information
- Frequently Asked Questions
- Nearby Chronicle Trails Guides
History of South Foreland Lighthouse
Goodwin Sands and the First Lights at South Foreland
The Goodwin Sands are the reason lights have shone from this clifftop since the 14th century. The National Trust describes the sands as a 10-mile bank between South Foreland and Ramsgate, hidden below the sea for most of the time and long known as the Great Ship Swallower. According to the Trust, the first warning came in 1367, when Brother Nicholas de Legh hung a lantern on the cliff face to warn sailors of the danger.
The Trust dates the first recognisable lighthouses at South Foreland to 1635, when the soldier Sir John Meldrum arranged for two iron braziers, an upper and a lower light; there have been two lighthouses here ever since. Robert Osbolton took over Meldrum’s lease in 1642, and Greenwich Hospital took charge after Osbolton’s son died in 1715. The hospital glazed in the fires, but smoke deposits blocked the light and the glass had to be removed after 12 years. In 1793 John Yenn redesigned the upper lighthouse to burn oil lamps, and the lower light was rebuilt to a similar design two years later.
James Walker and the Victorian Upper and Lower Lighthouses
James Walker FRS (1781–1862), one of the great Victorian engineers, supervised the building of the lighthouses that stand today, according to the National Trust. The Upper Lighthouse was heightened and refurbished in 1842, and the Lower Light was fully rebuilt in 1846.
The two towers worked as a pair of leading lights. The Trust explains that sailors lined them up, and when the Upper Light shone directly above the Lower Light they knew they could steer safely past the southern tip of the Goodwin Sands. By 1904 the sands had moved so far that the arrangement was no longer safe, so the Lower Light was decommissioned and a much brighter flashing light was installed in the Upper Lighthouse.
South Foreland’s Electric Light, 1858
Michael Faraday, Scientific Adviser to Trinity House, which owned the lighthouse at the time, is the scientist most closely linked with South Foreland’s electric light. The National Trust records that the scientific work at Trinity House led, in 1858, to South Foreland becoming the first lighthouse ever to shine an electric light.
Faraday’s own report to Trinity House, dated 29 April 1859, describes the system as Professor Holmes’s magneto-electric light in the South Foreland Upper Lighthouse, powered by magneto-electric induction rather than a battery. Faraday wrote that the trial began on 8 December 1858 but was paused while faults in the apparatus were put right, and he concluded that Holmes had practically established that the light was fit for lighthouse use. The Trust adds that mains electricity reached South Foreland in 1922, when the 50-year-old Holmes generator was finally shut down.
Guglielmo Marconi and the First Ship-to-Shore Radio Message
Guglielmo Marconi’s company came to South Foreland at the end of the 19th century, when Trinity House was looking for a reliable way to communicate with its lightships and offshore lighthouses. The National Trust explains that the high clifftop overlooking the English Channel made an ideal site for testing ship-to-shore wireless telegraphy.
In December 1898, according to the Trust, Marconi’s assistant George Kemp went out to the East Goodwin Lightship, 12 miles away, while Marconi supervised the building of a large aerial close to the lighthouse. On Christmas Eve 1898 the first ever ship-to-shore radio transmission was recorded at South Foreland, and Christmas greetings were exchanged. After that success the French government allowed Marconi to install equipment at Wimereux in northern France, and on 27 March 1899 he sent the first international radio transmission to South Foreland Lighthouse. A few weeks later, the Trust records, the steamship RF Matthews collided with the East Goodwin Lightship in thick fog, and wireless messages allowed Trinity House to send urgent help.
The Knott Family of Lighthouse Keepers
The Knott family kept the lights at South Foreland for five successive generations, with eight family members working as keepers. The National Trust notes that historians think the Knotts, who served here between 1730 and 1910, were probably the longest-serving family of keepers in lighthouse history.
According to the Trust, William Knott would have seen Admiral Hawke’s fleet sail down the Channel in 1759 to meet the French at the Battle of Quiberon Bay, and Henry Knott lowered the flag in respect to HMS Victory as she passed South Foreland in 1778. John Knott, who died in the lighthouse service in 1851, is buried in the churchyard at St Margaret’s-at-Cliffe, where a nearby lane is named after the family.
South Foreland Lighthouse in the Second World War
South Foreland Lighthouse went dark during the Second World War. The National Trust explains that the light was turned off so that it could not help the enemy and the tower was camouflaged; even so, it was damaged, and shrapnel marks can still be seen inside the lamp room.
Three important gun positions were built on the cliffs nearby and, once operational, were known collectively as a Fortress, with their headquarters near the edge of the lighthouse grounds. The Trust adds that South Foreland had a radar system to track shipping in the Channel, which let the guns fire at night and in poor visibility.
Automation, Decommissioning and the National Trust
South Foreland Lighthouse became fully automated in 1969, and its resident keepers were transferred to other lighthouses. The National Trust records that the light was decommissioned on 30 September 1988, once modern navigational aids meant it was no longer needed, and that the Trust took over its care in 1989. The lamp stayed dark until June 2012, when it shone across the English Channel again to mark Queen Elizabeth II’s Diamond Jubilee.
Sources: the National Trust’s History of South Foreland Lighthouse and Michael Faraday’s report to Trinity House of 29 April 1859, published by the Ɛpsilon Michael Faraday Collection.
Visiting South Foreland Lighthouse: Practical Information
Managing body: The National Trust, a UK conservation charity, which also looks after the nearby White Cliffs of Dover and Fan Bay Deep Shelter.
Address: St Margaret’s Bay, Dover, Kent. There is no visitor car park at the lighthouse; see Parking below.
Opening hours: On the day we checked (12 October 2026), the lighthouse was open 11am–5.30pm, the tearoom 11am–5pm and the toilets 10.30am–5.15pm.
Seasonal opening: In autumn the lighthouse, tearoom and toilets open Friday to Monday only, then every day during the October half-term school holiday. Opening days change through the year, so check the National Trust calendar for your date before travelling.
Ticket prices: Entry to the lighthouse grounds and tearoom is free during opening hours. Lighthouse tower tours cost: adult (18+) £8; child (5–17) £4; under-5s free; family (2 adults and up to 3 children) £20. No concession (reduced rate for older visitors or students) is listed. National Trust members tour free with a valid membership card but still collect a ticket from the shop.
Tours: All visits to the lighthouse tower are by guided tour.
Booking: The National Trust lists no advance booking for tower tours. Tickets are issued at the lighthouse shop.
Getting there from London: Southeastern high-speed trains run direct from London St Pancras International to Dover Priory in around 1 hour 15 minutes. The National Trust describes the service as hourly.
From Dover Priory station: The station is about 3 miles from the lighthouse. Walkers can follow the Saxon Shore Way cliff path from Dover, about 2½ miles, passing the White Cliffs of Dover visitor centre.
Parking: There is no parking at the lighthouse and no vehicle access for general visitors. Park at the White Cliffs of Dover visitor centre (Langdon Cliffs, Upper Road, Guston, Dover CT16 1HJ) and follow the 2-mile waymarked clifftop trail, or use the public car parks in St Margaret’s village or bay (not National Trust) and walk about a mile through South Foreland valley. National Trust members and Blue Badge holders (the UK’s disabled parking permit) park free at the White Cliffs. The Trust warns that the visitor centre postcode may send sat navs to the ferry terminal, and advises entering CT15 5NA and turning into the car park at the sharp bend.
Cycling: National Cycle Route 1 passes half a mile from the lighthouse. Cycle racks are available.
Accessibility: Two steps lead to the lighthouse entrance, with temporary ramps to the shop, tearoom and lighthouse. The ground floor is accessible, but the upper floors are reached only by many stairs with a handrail. The grounds have loose gravel, uneven ground and steep slopes. Visitors unable to walk can park in the grounds by prior arrangement: contact the property on 01304 853281 or southforeland@nationaltrust.org.uk before your visit. There is an accessible unisex toilet, and induction loops at the tills. The full AccessAble guide has more detail.
Dogs: The National Trust rates the lighthouse as a pawprint (dog-friendly) place; see its guide to visiting with your dog.
Facilities: Mrs Knott’s 1950s-style tearoom in a former keepers’ cottage, a small shop with a second-hand bookshop, a takeaway kiosk on busy days, toilets, and lawn games and kites when the shop is open.
Views: The balcony at the top of the tower looks over the Strait of Dover, the Goodwin Sands, the French coast and the Kent countryside.
Nearby attractions: Fan Bay Deep Shelter, the National Trust’s Second World War tunnels on the clifftop path from the visitor centre; the White Cliffs of Dover visitor centre and clifftop walks; and the Pines Garden and St Margaret’s Museum on the shorter route from St Margaret’s Bay.
Prices last checked: October 2026
Opening hours last checked: October 2026
Sources: the National Trust’s South Foreland Lighthouse page for hours, prices, facilities, access and directions, and its White Cliffs arrival guide for parking and member tickets. Rail times are from Southeastern.
Where to book: No advance booking is listed. Grounds and tearoom entry is free, and tower tour tickets are issued at the lighthouse shop on the day; check opening days on the National Trust South Foreland Lighthouse page before you travel.
Frequently Asked Questions
Entry to the South Foreland Lighthouse grounds and tearoom is free, and a guided tower tour costs £8 for adults, £4 for children aged 5 to 17 or £20 for a family. Under-5s and National Trust members tour free, though members still collect a ticket at the shop.
No, there is no vehicle access to South Foreland Lighthouse for most visitors. Park at the White Cliffs of Dover visitor centre and walk 2 miles along the clifftop, or park in St Margaret’s and walk about a mile; visitors who cannot walk can arrange to park in the grounds by contacting the property first.
The walk to South Foreland Lighthouse is about 2 miles each way on a waymarked clifftop trail from the White Cliffs of Dover visitor centre. The shorter route from St Margaret’s is about a mile, through South Foreland valley.
Yes, South Foreland Lighthouse works as a day trip from London. Direct high-speed trains from St Pancras reach Dover Priory in around 1 hour 15 minutes, and the lighthouse is about 3 miles from the station on foot via the clifftop path past the White Cliffs of Dover visitor centre.
Yes, Mrs Knott’s tearoom is in a former lighthouse keepers’ cottage and is free to enter during opening hours. It is decorated in 1950s style with vintage wallpaper and real china, and serves tea, coffee and homemade cakes.
No, South Foreland Lighthouse has not been a working lighthouse since 30 September 1988, when modern navigational aids made it unnecessary. The light shone again in June 2012 for Queen Elizabeth II’s Diamond Jubilee, but the National Trust now cares for it as a historic site.
Nearby Chronicle Trails Guides
South Foreland pairs naturally with Fan Bay Deep Shelter, the Second World War tunnels on the same clifftop path, and with Dover Castle, which guards the same stretch of coast. Browse more Landmarks & Monuments guides, or explore the England hub.
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