Yongsan Observatory offers an unobstructed view of Suncheonman Bay's large S-shaped waterway. The observatory can be reached by following the trail through the field of reeds, crossing over Daedae Estuary on Mujingyo Bridge. With a birds-eye view, take in the vast fields of reeds and mudflats, dotted throughout with groups of birds wading through in search of food.

Gwangseongbo Fortress’s outer wall from the Goryeo era was mended in 1618. The fortress was built in 1656 and the outpost was constructed in 1679. It was completely remodeled into a masonry castle with gates in 1745. During Sinmiyangyo (the American invasion in 1871), Gwangseongbo was the fiercest battle ground in Ganghwa. On April 24, 1871, a fleet with 1,230 American naval forces led by Rear Admiral John Rodgers landed on Ganghwado Island to demand the opening of Korea's ports and commerce. The armed forces attacked Chojijin Fortress and Deokjinjin Camp, then marched to Gwangseongbo Fortress, where they engaged in close combat with the warriors of Joseon. Although General Eo Jae-yeon and the other warriors were poorly equipped with far inferior weapons, they bravely fought to the death against the invading forces.The battlefield ruins of the fortress and the gate towers such as Anhaeru, Gwangseongdon, Sondolmokdon, and Yongdudon were repaired in 1977. The twin tombs of General Eo Jae-Yeon and his brother Eo Jae-seon, along with the anonymous tombs of warriors who died on the battlefield were also honorably arranged at the same time. Furthermore, a stone monument commemorating the restoration of Ganghwa Battlefield was erected on Yongdudondae Post.In 1988, an extensive rest area was created toward the shore for visitors’ convenience. Gwangseongbo Fortress is presently designated as Historical Relic No. 227. A religious service known as Gwangseongje is held annually to commemorate the patriotic spirits of General Eo Jae-yeon and other unnamed warriors. This service takes place at 11 a.m. on every April 24th of the lunar calendar.

Odusanseong Fortress (오두산성) is built around the strategic summit of the mountain. Its walls stretch across roughly 620 meters and were built during the Baekje Dynasty. The fortress is built on the intersection of the Imjingang River (임진강) and the Hangang River (한강) on the summit of Odusan Mountain (오두산, 119 meters). The mountain’s slope is steep and stones used in the construction of the fortress walls are scattered here and there at the summit. These scattered stones are evidence that the fortress underwent repairs several times during the Samguk (Three Kingdoms) era and the Joseon Dynasty, as these stones were evidently quarried and used to mend the fortress walls. Excavations have discovered a great deal of earthenware, white porcelain, tile, and iron arrowheads. Topographically, the fortress sits on a prime strategic junction and the Unification Observatory has been situated there as well. The fortress stands as an important object of study concerning fortifications and structures from the Baekje Dynasty. It has been recorded on the stele of King Gwanggaeto, samguksagi (History of the Three Kingdoms), in the baekjebongi (Baekje Annals) and on daedongyeojido (Map of Korea) that the fortress was the Gwanmi Fortress of Baekje, attracting many scholars and researchers interested in this period. 

The Tea Museum of Korea was built to preserve Korea’s tea culture and celebrate the history of Boseong tea, which dates back as far as the Baekje Era. Each of the three floors of the museum is unique and focuses on a different aspect of tea. On the first floor is the Tea Culture Hall, which explains the process of tea production through graphic panels, videos, and dioramas. The Tea History Hall on the second floor exhibits tea wares and tools from different periods in history, showcasing the evolution of tea culture over time. The third floor houses the Tea Life Hall, which is dedicated to education and hands-on experiences and gives visitors a chance to discover the tea cultures of Korea, China, Japan, and Europe as well as various tea tools from other countries. Visitors can further delve into the world of tea by visiting the Tea Making Workshop, which is equipped with facilities to make different types of green teas.

Samsung Innovation Museum is an electronic industrial museum run by Samsung, a major global company based in Korea. The museum mainly consists of three sections. Visitors can learn about the history of Korea's electronic industry, as well as the past, present and future of the semiconductor, display and mobile industries, where Samsung made great achievements. The museum also runs an education facility called Children's Display Research Institute.

Computers have undergone a dynamic and fast-paced evolution for the last four decades. It set critical roles for the establishment of world-wide gaming industries, including NEXON. Thus Nexon Computer Museum was established in Jeju to share the rich history of computers and to display the digital phenomenon, which has increasingly become a pivotal segment of society, is valuable for future generations. The opening date of the museum: July 27, 2013

Cherry blossoms cover Simni (10ri*) Cherry Blossom Road from Hwagae Market to Ssanggyesa Temple. Along with Gurye's sansuyu flowers, Hwagae's cherry blossoms symbolize the onset of spring at Jirisan Mountain. Every year in March and April, the cherry blossom road draws in many visitors.*ri is a traditional Korean measurement unit; 10ri is approximately 4km.

Jeungdo Island (증도) was the first city to be designated a ‘slow city’ in Asia thanks to its unspoiled nature and clean waters. It was assigned as a biodiversity conservation area by UNESCO. Jeungdo Island also has Korea’s largest salt fields. At Taepyeong Salt Field, you can experience real life in a fishing village. There is a tour of the salt museum and hands-on programs for tourists to make the experience more personal. There are some 90 uninhabited islands and islets neighboring the Jeungdo Island. The Wujeon Beach Resort offers a magnificent view of the horizon. The mud hopper bridge, which stands in the mudflats, along with the relic of a historical monument and wetland ecology exhibition hall, are some of the things you can see on the island of Jeungdo. ※ Jeungdo Island Mudflats Festival opens in early August each year, offering a mudflat program as well as a drying by the sun salt-making program, among others.  

Daegaya Museum is an exhibition of history and culture of the Daegaya (The Great Gaya; 42-562 AD) Kingdom. The Museum consists of the Daegaya History Pavilion and the Daegaya Royal Tomb Pavilion. The History Pavilion houses a collection of relics from the Daegaya Kingdom era, while holding special exhibitions and education activities periodically. The outdoor exhibition center displays items that represent ancient lifestyle such as dugouts, attic storage, iron furnace, as well as religious relics. The Royal Tomb Pavilion is a 37m-wide dome that houses relics of the Jisandong Ancient Tombs. It is essentially the restoration of the Jisandong Tumulus No. 44, the first large-scale sunjang (burial of the living with the dead).