Ganghwa Island guide: dolmens, coastal forts and Jeondeungsa by bus

Split the island into two halves

Ganghwa is bigger than most visitors expect — VisitKorea calls it Korea's fourth-largest island — and its sights are spread across farmland, hills and coast rather than clustered in one town. Trying to see everything in a single loop means most of the day goes on buses and waiting. It works far better as two halves.

The north and centre is Ganghwa-eup, the island's town, with the bus terminal, the Goryeo-era fortress walls, the Anglican church and the market, plus the dolmen site at Bugeun-ri and the Ganghwa History Museum to the north-west. The east and south is the line of Joseon coastal forts facing the strait — Gwangseongbo, Deokjinjin and Chojijin — with Jeondeungsa temple inland and the tidal flats of Dongmak Beach on the south coast. On a day trip, pick one half; with a night on the island, do one each day.

The Ganghwa County tourism site lists tourist information centres in the waiting room of Ganghwa Bus Terminal, at the dolmen ticket office and at Chojijin. Ask at the terminal desk for the current island bus routes and return times before you head out: they are the most useful piece of paper you will get all day.

• Day trip, history focus: Ganghwa-eup walls and church, then the dolmen site and history museum.
• Day trip, coast and temple: Gwangseongbo, Deokjinjin and Chojijin, then Jeondeungsa.
• One night: both halves, with sunset over the southern tidal flats in between.

The dolmens and the Ganghwa History Museum

Ganghwa is one of the three Korean dolmen areas inscribed together by UNESCO in 2000 as the Gochang, Hwasun and Ganghwa Dolmen Sites. VisitKorea's UNESCO page says more than 160 Bronze Age dolmens remain on the island, spread over very different terrain, and that most Korean dolmens were built around 1000 BC.

The one to see is the Dolmen in Bugeun-ri in Hajeom-myeon, a table-style dolmen whose capstone, according to VisitKorea, is 710 centimetres long, 550 centimetres wide and 260 centimetres high, resting on two upright stones. It stands in an open field, so you see the whole structure at once. When we checked on 2026-10-03, VisitKorea listed the site as open 24 hours with free admission.

The Ganghwa History Museum, which opened in 2010, sits beside it at 994-19 Ganghwa-daero and covers the island from prehistory to modern times — a good way to put the forts and fortress walls you will see later into order. When we checked on 2026-10-03, VisitKorea listed it as open 09:00–18:00 (last tickets 17:30), closed on Mondays, 1 January, Seollal and Chuseok, with adult admission at 3,000 won. Come on a Monday and you get the dolmen but not the museum.

If the dolmens are your reason to come, Gochang in the Jeolla region has a far larger concentration — VisitKorea counts 447 of its dolmens on the UNESCO list — and its own dolmen museum. Ganghwa's advantage is that it is reachable from Seoul in a day.

The coastal forts: 1866, 1871 and 1876

The eastern shore of Ganghwa faces the narrow Ganghwa Strait, and a chain of Joseon forts and gun batteries guarded it. VisitKorea describes how Deokjinjin was the scene of heavy fighting during the French expedition of 1866 and the American one of 1871, and how in 1871 an American force under Rear Admiral John Rodgers attacked Chojijin and Deokjinjin before fighting at close quarters at Gwangseongbo, the fiercest battle on the island. In 1876 the Japanese warship Unyangho (Un'yō) attacked Chojijin, in the episode that led to the treaty forcing Korea to open its ports.

Gwangseongbo is the most rewarding stop: restored walls and gate towers, the Gwangseongdon and Yongdudon batteries above the water, and the tombs of General Eo Jae-yeon and the soldiers who died there. VisitKorea suggests about 50 minutes; Deokjinjin takes about 30 and has reproduced Joseon cannons at its Namjangpodae battery. Chojijin is the southernmost of the three.

When we checked on 2026-10-03, VisitKorea listed all three as open 09:00–18:00 every day, and Chojijin's admission at 700 won for adults. Its Chojijin page also describes a combined discount across Ganghwa County's main paid sites — 15% for three or four and 20% for five or more — so ask about it at the first ticket office if you plan several. Walkers can follow Ganghwa Nadeul-gil Course 2, which VisitKorea describes as a 17-kilometre coastal route between Gapgotdon watchtower and Chojijin, particularly beautiful in spring and autumn.

Jeondeungsa: a temple inside a fortress

Jeondeungsa stands inside Samnangseong, a mountain fortress that legend attributes to the three sons of Dangun, Korea's mythical founder. VisitKorea notes that the temple was originally called Jinjongsa and took its present name during the Goryeo period, and that its buildings are fine examples of mid-Joseon architecture. Look closely in the main hall, Daeungjeon: the walls and columns carry names written by soldiers who fought the French navy, praying for luck in battle.

Give yourself an hour for the halls, the bell and the old trees inside the fortress walls. When we checked on 2026-10-03, VisitKorea listed the temple as open 09:00–17:30 all year, with free admission. Jeondeungsa also runs a templestay; VisitKorea's templestay page lists it with information in Korean and English, which is the most atmospheric way to spend a night on the island.

Ganghwa-eup: Goryeo walls, an Anglican church in hanok style

The island's town is easy on foot from the bus terminal. Ganghwa Sanseong began, as VisitKorea explains, as earthen walls built in 1232 after King Gojong of Goryeo moved his court here to resist the Mongols. Only the inner wall, about 1.2 kilometres around, survives in rebuilt stone form, with gates on four sides. At the west gate stands Yeonmudang, the drill ground where the 1876 Treaty of Ganghwa was signed.

The Ganghwa Anglican Church, consecrated in 1900 by Bishop Charles John Corfe, looks from outside like a two-storey hanok and inside like a Western basilica; it is a national Historic Site. For a coffee break, Joyang Bangjik is a former textile factory turned into a large café and gallery with the old workbenches used as tables.

With a car or patience for buses, the town is also the springboard for the north: VisitKorea's page on the Jejeokbong Peace Observatory says it looks across the water to North Korea and asks visitors to carry a passport. When we checked on 2026-10-03, it listed 09:00–18:00 from March to November and 09:00–17:00 from December to February, with adult admission at 2,500 won.

Tidal flats, Seongmodo and Gyodongdo

Ganghwa's south coast is tidal-flat country. At Dongmak Beach, VisitKorea describes a pine-backed sand beach that becomes a wide mudflat at low tide, with clams and crabs to look at; nearby, the Janghwa-ri tidal flats are a photographers' favourite at sunset. What you see depends entirely on the tide, so check the tide time before you plan sunset here.

To the west, 1.2 kilometres across the water, lies Seongmodo, whose Bomunsa temple faces the sea from Sangbongsan Mountain and is believed to date from 635. When we checked on 2026-10-03, VisitKorea listed it as open 09:00–18:00 with adult admission at 2,000 won. To the north-west, Gyodongdo has been linked by the Gyodong Bridge since July 2014; its Daeryong Market was built by refugees from Hwanghae Province during the Korean War and keeps a 1960s look. Both islands are better as an extra day or by car than squeezed into a bus day trip.

For a hike, Manisan (472 metres), on the south-west of the island, has the Chamseongdan altar where Dangun is said to have performed rituals, and VisitKorea notes views over the sea and towards North Korea from the top.