KDD 2026 Jeju Island: Travel Guide and Where to Stay
KDD 2026 runs August 9-13 at the International Convention Center Jeju on South Korea’s volcanic island. The ACM SIGKDD Conference on Knowledge Discovery and Data Mining is the A* venue for data science and machine learning research — one of the largest and most competitive in the field — and this year it lands in a destination that is genuinely unlike anywhere else on the conference circuit. Jeju is not a city. It is an island of lava tubes, volcanic peaks, citrus groves, and a coastline that draws millions of Korean domestic tourists every summer. If you are planning to attend, book early: August is peak season and the island’s best hotels fill quickly.
The venue. The International Convention Center Jeju (ICC Jeju) is in the Jungmun Tourist Complex in Seogwipo on the island’s south coast, about 30 km from Jeju City. The venue is a purpose-built convention facility with multiple auditoria and a large exhibition hall, surrounded by the resort hotels that make up the Jungmun complex. Staying within the resort area means the walk to the conference takes minutes. The complex sits above the coast with views across the sea toward Japan on a clear day.
Getting there. Jeju International Airport (CJU) is in Jeju City on the north coast. It is one of the busiest domestic airports in the world — flights from Seoul Gimpo run almost hourly and take about an hour. International service is limited, so most attendees will route through Seoul Incheon (ICN), picking up a domestic connection. From the airport, taxis to the Jungmun resort area (where the ICC Jeju is) take about 40-50 minutes and cost around KRW 40,000-50,000 (roughly USD 30-35). Buses serve the route but are significantly slower with luggage. Rent a car if you plan to explore the island — public transit outside the main towns is limited and the best parts of Jeju are spread around a large volcanic landscape.
When to visit. August is peak Jeju. The island is subtropical — warm, humid, and very green in summer, with temperatures typically 28-32C. The east coast can see afternoon rain showers, but the south coast (where the ICC Jeju is) tends to get clearer weather. Evenings cool slightly and the resort complex area is pleasant for walks along the coast after sessions. Pack light, breathable clothes and be prepared for conference rooms that are aggressively air-conditioned.
Book as early as possible. Jeju in August is a major domestic holiday destination. The hotels in the Jungmun complex are some of the best-occupied resort properties in South Korea and conference week will compound the pressure on availability. If you are planning to attend KDD, book accommodation now.
Where to stay.
Most KDD attendees will want to stay in the Jungmun resort area, within walking distance of ICC Jeju. The hotels below are ordered by proximity to the venue.
The Shilla Jeju is a 5-star resort directly within the Jungmun complex, set on a cliff above the ocean. The Shilla is one of the most distinguished hotel brands in South Korea and this property lives up to it — large rooms, multiple restaurants including a rooftop bar, and a private beach club. The best option for attendees who want the full resort experience without leaving the complex.
Lotte Hotel Jeju is another 5-star property in the Jungmun complex, offering a large pool area, excellent spa facilities, and multiple dining venues. Lotte is a major Korean hospitality brand and this is one of their flagship properties. Very close to ICC Jeju and consistently well-regarded for conference stays.
Parnas Hotel Jeju is a 5-star in Seogwipo, connected to the Jungmun area and a reliable option for attendees who want high-end facilities at a slightly more accessible price point than the Shilla or Lotte.
Seogwipo KAL Hotel is a 5-star operated by Korean Air, with a well-located position in Seogwipo and views over the coast. A solid choice for industry attendees or those who want a slightly quieter setting than the main resort complex.
Kensington Resort Seogwipo is a 3-star resort in the Seogwipo area and the most budget-friendly option with good proximity to the venue. It caters to a mix of domestic leisure and conference visitors and is the right pick for grad students or cost-conscious attendees who still want to stay on the south side of the island near the ICC.
Mstay Hotel Jeju is a 4-star in Jeju City on the north coast, about 40-50 minutes from the venue by taxi. The rates are considerably lower than the Jungmun resort hotels and the airport is much closer, which is worth factoring in on arrival and departure days. A reasonable option for attendees on a tighter budget who are comfortable with the daily commute to sessions.
Food. The Jungmun resort complex has multiple hotel restaurants and a few freestanding options, but for the real Jeju food experience you need to venture out. Jeju black pork (heukdwaeji) is the island’s signature dish — a local breed of pig grilled over charcoal, richer and fattier than mainland Korean pork. The best version is in small restaurants in Jeju City’s Heukdwaeji Street, about 45 minutes north, worth the trip for a conference dinner. Haemul (seafood) is excellent everywhere on the island: the haenyeo (female divers) tradition means exceptionally fresh abalone, sea urchin, and shellfish at coastal restaurants in Seogwipo. Hallabong mandarin oranges are the island’s other food identity — small, intensely sweet citrus grown only on Jeju, available everywhere in season.
Things to do. Jeju is a UNESCO World Heritage site with outdoor activities few conference destinations can match.
Premium Boat Snorkeling at Seopseom Island is a guided snorkeling tour off a small uninhabited island near Seogwipo, with clear subtropical water and good visibility. It runs from the Seogwipo coast and takes about 2-3 hours — a good option for a pre-conference day or a free afternoon.
The Jeju Adventure Private Tour combines archery, go-karting, and a visit to a local market in a half-day private format — a good option for a group from the conference who want something active without a full day of logistics.
For independent exploration: Seongsan Ilchulbong (Sunrise Peak) on the east coast is a UNESCO-listed tuff cone that rises directly from the sea and is worth an early morning trip for the view from the rim. Manjanggul Lava Tube is one of the longest accessible lava tunnels in the world, 13 km northeast of Jeju City. Hallasan — the extinct volcano at the island’s centre and South Korea’s highest peak — has well-maintained hiking trails; the Eorimok route to the crater rim takes about 5 hours return and is one of the best half-day hikes in East Asia.
For the full hotel comparison, venue map, and conference details, see the KDD 2026 page, the ICC Jeju venue page, and the Jeju city guide.