Jeju Island
Jeju Island (제주도; map) is the largest island in South Korea and a prominent destination for travelers drawn to its unique volcanic landscapes, rich cultural heritage, and ecological significance. Officially known as Jeju Special Self-Governing Province, the island covers an area of 1,833 square kilometers, with Hallasan Mountain at its center, rising 1,947 meters above sea level. The island’s distinct geographical features include over 360 volcanic cones, known locally as oreums, and a coastline marked by lava formations and sandy beaches.
Referred to as Tamna Kingdom (탐라) in ancient records, Jeju Island was an independent kingdom before its incorporation into the Korean Peninsula’s governance in 1404. Today, Jeju is a UNESCO World Natural Heritage Site, recognized for its geological and ecological importance.
Geography
Jeju Island sits in the southernmost part of Korea, approximately 450 kilometers from Seoul, separated from the mainland by the Jeju Strait (제주해협; map). Here’s a brief rundown of its geology:
- Its elliptical shape stretches 73 kilometers from east to west and 31 kilometers from north to south.
- The coastline spans 253 kilometers, encompassing rocky shores, lava cliffs, and a few sandy beaches.
- Hallasan Mountain occupies its middle. A dormant shield volcano and the highest peak in South Korea, its slopes give rise to diverse ecosystems, ranging from subtropical lowlands to alpine environments.
Jeju’s geological formation began millions of years ago through volcanic activity. The island’s rich history includes its time as the independent Tamna Kingdom, which engaged in trade with China and Japan. During the Joseon Dynasty, Jeju became a place of exile for political dissidents, further shaping its unique culture and traditions.
Culture and Ecology
Jeju’s culture reflects its isolated development and natural surroundings. It is renowned for its Haenyeo (해녀), or women free divers, who harvest scallops and other sea-critters without scuba gear. The island’s dialect and shamanistic rituals are distinct from standard Korean.
Ecologically, Jeju Island is a treasure trove of biodiversity. Its designation as a UNESCO Biosphere Reserve because of its rare plants, animals, and unique natural landmarks, like Manjanggul Cave, Seongsan Ilchulbong Peak, and Geomun Oreum.
Flora and Fauna
Jeju’s rich ecosystems support a wide range of plant and animal life, from endemic species like the Jeju horse (제주마) and Jeju salamander (제주도롱뇽) to migratory birds that use the island as a vital stopover point.
Its unique subtropical forests, particularly in Gotjawal (곶자왈), thrive on volcanic rock, creating a year-round lush environment that serves as a natural carbon sink and water reservoir. These forests are essential for biodiversity, climate regulation, and eco-tourism, offering visitors opportunities to explore while learning about conservation efforts.
Landscape Highlights
Jeju Island’s geography is defined by its volcanic origins, featuring Hallasan Mountain at its center, surrounded by coastal plains, lava tubes, and rugged cliffs. Its diverse landscapes make it a haven for natural wonders and outdoor exploration.
Hallasan Mountain
Hallasan Mountain (한라산; map), a dormant shield volcano, dominates Jeju’s landscape. Its peak is the highest mountain in South Korea, rising 1,947 meters above sea level. The volcano also serves as a vital ecological and cultural symbol, with its slopes hosting a range of ecosystems, transitioning from subtropical forests at its base to alpine vegetation near the summit.
Hallasan is also a central feature of Jeju’s UNESCO World Natural Heritage designation, representing its volcanic origins and biodiversity.
Oreums (Parasitic Volcanoes)
Jeju Island is home to over 360 parasitic volcanoes, locally known as oreums (오름). These smaller volcanic cones, ranging from 200 to 300 meters in height, are scattered across the island.
Oreums, or “parasitic volcanoes,” are called so because they are secondary volcanic cones that formed as a result of eruptions occurring on the flanks or near the base of a larger primary volcano. These smaller cones emerged when magma found alternative pathways to the surface through cracks in the volcanic structure, rather than erupting from the central vent.
Notable examples include Seongsan Ilchulbong Peak (성산일출봉; map), a tuff cone known for its sunrise views, and Geomun Oreum (거문오름; map), a site recognized for its extensive lava tubes.
These formations shape Jeju’s topography and play a key role in the island’s hydrology by influencing the flow of groundwater through Jeju’s porous volcanic rock.
Coastal Geography and Lava Formations
Jeju’s coastline spans 253 kilometers. It features a mix of rocky shores, sandy beaches, and striking lava formations. Columnar joints, formed by cooling lava, are prominent along the southern coast, with sites like Jusangjeolli Cliffs (대포주상절리; map) showcasing hexagonal stone pillars.
The island’s unique black sand beaches, such as Geumneung Beach (금능해수욕장; map), reflect its volcanic heritage.
Coastal features also include sea caves and arches shaped by erosion, adding to Jeju’s geological diversity. These formations provide habitats for marine life and opportunities for exploration.
Baengnokdam Lake
Baengnokdam Lake (백록담; map), meaning “White Deer Lake,” is a crater lake at the summit of Hallasan Mountain. Sitting 1,947 meters above the sea, it is the highest point in South Korea.
According to local legend, the lake earned its name because white deer, sacred animals in Jeju folklore, were said to descend from the heavens to drink from its waters.
The lake is fed by rainfall and snowmelt, surrounded by rugged cliffs and alpine vegetation, creating a unique and serene environment.
Baengnokdam is a popular destination for hikers and nature enthusiasts, accessible via well-maintained trails like Seongpanak (성판악; map) that passes Gwaneumsa Temple (관음사; map).
Climate and Weather
Jeju Island’s climate is shaped by its subtropical location, volcanic terrain, and proximity to ocean currents. The island experiences four distinct seasons, each offering unique weather conditions that influence its landscapes, agriculture, and tourism.
Subtropical and Temperate Zones
Jeju Island experiences a combination of subtropical and temperate climates, contributing to its diverse ecosystems, from subtropical forests to alpine flora and fauna.
- The coastal lowlands are characterized by mild winters and hot, humid summers.
- The island’s higher elevations, such as Hallasan Mountain, feature cooler temperatures and distinct seasonal changes.
Weather and Phenomena
Jeju’s weather is shaped by its position along the warm Kuroshio Current and its exposure to seasonal typhoons. The current moderates temperatures year-round, while typhoons bring heavy rainfall and strong winds, particularly in late summer and early autumn.
Unique weather phenomena further define Jeju, including the Kármán Vortex, swirling cloud patterns caused by strong winds that interact with Hallasan Mountain’s terrain, and the foehn effect, which triggers localized temperature spikes. Frequent rainbows add to the island’s reputation as a site of natural wonder and meteorological interest.
Seasonal Considerations for Cyclists
Cycling on Jeju Island offers unique challenges and opportunities throughout the year.
- Spring and autumn are ideal for cycling, with mild temperatures and low rainfall creating comfortable conditions.
- Summer, while popular due to extended daylight hours, can bring high humidity and occasional typhoons.
- Winter, though cooler, remains manageable for experienced cyclists, especially along coastal routes.
Riders should consider wind conditions, as Jeju’s open landscapes can expose them to strong gusts, particularly on the western and southern coasts.
Cultural and History
Jeju Island’s history is rooted in its unique geography and independent past, from the Tamna Kingdom to enduring myths to its place as a maritime hub. Let’s learn about it.
Tamna Kingdom
The Tamna Kingdom was an independent maritime nation on Jeju Island, founded according to legend by three demigods—Go, Yang, and Bu—who emerged from the Samseonghyeol (삼성혈; map; “Three Sacred Holes”).
Tamna thrived as a trade hub, exchanging goods like dried fish and horses with China, Japan, and Southeast Asia. Though it became a tributary to mainland dynasties like Silla and Goryeo, it retained its unique culture and governance until full annexation in the 12th century. Tamna’s legacy endures in Jeju’s myths, crafts, and historic sites.
Dolharubang Statues
Dolharubang Statues (돌하르방), also known as “stone grandfathers,” are iconic stone figures found throughout Jeju Island. Carved from porous volcanic rock, these statues were traditionally placed at village entrances as guardians to ward off evil spirits and bring protection.
Recognizable by their round eyes, bulbous noses, and folded hands, Dolharubang are believed to symbolize strength and fertility. Today, they are celebrated as cultural symbols of Jeju and popular attractions for visitors.
Local Legends
Jeju’s rich folklore weaves together creation myths, deities, and supernatural stories that reflect its people’s connection to the sea and land. Let’s explore some:
- The Legend of the Three Demigods
- Jeju’s origin story begins with three demigods—Go (고), Yang (양), and Bu (부)—who emerged from the Samseonghyeol. They founded the Tamna Kingdom and are honored as the ancestors of Jeju’s first inhabitants. The site remains sacred, with rituals held to commemorate their legacy.
- Seolmundae Halmang
- Seolmundae Halmang (설문대할망), a giant goddess, is said to have used her immense strength to shape the Jeju Island, including Hallasan Mountain. Her story reflects the deep bond between the people of Jeju and their natural environment.
- Yeongdeung Halmae
- Yeongdeung Halmae (영등할매), the goddess of wind and sea, visits Jeju every spring to bless its fishermen and divers. Her arrival, marked by strong winds, is honored with Yeongdeung-gut rituals performed by shamans to ensure safety and bountiful catches for the island’s seafarers.
- Ieodo Island
- Ieodo (이어도), a mythical underwater island, is believed to lure sailors who see it into never returning. Considered a utopia for lost souls, it highlights Jeju’s maritime culture and the dangers faced by its fishing communities.
- Sanbangsan and Dolharubang
- Many myths tell stories that Sanbangsan (산방산; map), a volcanic mountain in southern Jeju, is a displaced peak from Hallasan or linked to the creation of Dolharubang, the iconic stone grandfather statues believed to guard the island from intruders.
- General 500 Warriors of Yeongsil
- The rock formations at Yeongsil Kiam (영실기암; map) are said to be 500 petrified warriors—sons of Seolmundae Halmang. The goddess, consumed by grief after accidentally killing them, turned them into stone. These formations add a somber reverence to Jeju’s landscape.
Key Attractions
Jeju Island is renowned for its natural wonders, cultural landmarks, and immersive experiences that showcase its volcanic origins. Let’s explore some of them.
Seongsan Ilchulbong Peak
Seongsan Ilchulbong Peak (성산일출봉; map), also known as Sunrise Peak, is a striking tuff cone formed by hydrovolcanic eruptions. Located on the eastern coast of Jeju, it rises 182 meters above sea level and offers panoramic views of the surrounding sea and countryside.
The site is particularly popular for its breathtaking sunrises, drawing visitors who hike to its summit in the early morning.
Designated as a UNESCO World Natural Heritage site, Seongsan Ilchulbong is also notable for its unique ecological environment, home to rare plants and marine life.
Manjanggul Lava Tube
The Manjanggul Lava Tube (만장굴; map) is one of the finest lava tunnels in the world and a key part of Jeju’s UNESCO World Natural Heritage designation. Spanning over 13 kilometers, the tube features remarkable formations such as lava stalactites, lava benches, and the world’s largest lava column, standing 7.6 meters high.
Only a one-kilometer section is open to the public, allowing visitors to explore the tube’s eerie and awe-inspiring interior. The site offers insights into Jeju’s volcanic history and showcases the island’s geological uniqueness.
Jeju Olle Trails
The Jeju Olle Trails (제주올레트레일) are a network of walking paths that wind through the island’s diverse landscapes, including coastal cliffs, volcanic cones, and rural villages.
Inspired by the Camino de Santiago in Spain, the trails span over 400 kilometers and are divided into multiple routes that showcase lava cliffs and forested paths, trek across black sand beaches with coastal views, or travers the lush forests below Hallasan Mountain.
Popular among hikers and nature enthusiasts, the Olle Trails provide an immersive way to experience Jeju’s scenery. The routes are well-marked and cater to various levels of difficulty, making them accessible to a wide range of visitors.
Culture
Jeju’s culture is shaped by its volcanic landscape, maritime traditions, and historical isolation, creating a unique blend of customs, language, and heritage. Let’s learn about its unique culture.
Haenyeo
Jeju’s Haenyeo (해녀), or women divers, are UNESCO as an Intangible Cultural Heritage of Humanity because they represent the island’s cultural and ecological heritage. These women free-dive without oxygen tanks to harvest seafood such as abalone, sea urchins, and octopus, often reaching depths of up to 20 meters.
The Haenyeo tradition dates back centuries. It symbolizes the resilience and resourcefulness of Jeju’s women, who have historically supported their families and communities through this dangerous work.
Dialect, Customs, and Shamanism
The Jeju dialect, distinct from standard Korean, reflects the island’s historical isolation and uniqueness. This regional language includes words and expressions that are unintelligible to mainland Koreans.
Jeju inhabitants are also known for communal farming practices and rituals honoring ancestors and local gods. Visitors can observe these traditions at local festivals and cultural centers.
Shamanistic rituals are still practiced on Jeju. The island is home to numerous shrines, known as dang, dedicated to local deities and spirits. Rituals, or gut, are performed by shamans to ensure good fortune, health, and protection for the community.
Cuisine
From its famous black pork to fresh seafood and sweet tangerines, Jeju’s local flavors are a testament to the island’s volcanic soil, temperate climate, and maritime traditions.
- Jeju Black Pork
- Jeju Black Pork (흑돼지) is a culinary icon of the island, known for its rich flavor and tender texture. This breed of pig, native to Jeju, is distinct for its dark skin and unique diet, which includes leftovers and natural forage. Black Pork is often grilled and served with traditional Korean side dishes, offering visitors an authentic taste of Jeju’s culinary heritage.
- Hallabong and Tangerines
- Jeju’s tangerines, particularly the premium Hallabong variety (한라봉), are among the island’s most famous agricultural products. The island’s volcanic soil and temperate climate create ideal conditions for citrus cultivation, resulting in fruits that are exceptionally sweet and juicy. Tangerines are a key part of Jeju’s economy, and visitors can enjoy fresh produce at local markets or even participate in tangerine-picking activities at farms.
- Seafood Specialties
- Given its location and maritime culture, Jeju boasts an array of seafood specialties. Dishes featuring abalone, sea urchin, and mackerel are especially popular. Abalone porridge, or jeonbokjuk (전복죽), highlights the delicate flavors of Jeju’s fresh seafood, whole grilled sea urchins and raw fish platters showcase the island’s rich marine bounty.
