Korea · Coastal city

Busan,
by the sea.

5-second answer

If you only know four things.

Getting thereKTX from Seoul, ~2.5 hr
The beachesHaeundae · Gwangalli
Must-eatDwaeji gukbap · milmyeon
Where to stayHaeundae or Seomyeon

Getting there from Seoul.

The fast way is the KTX from Seoul Station to Busan Station: about 2 hours 30 minutes, from around ₩60,000 one-way in standard class. The SRT (from Suseo Station, southeast Seoul) runs the same corridor slightly cheaper. Both need a seat reservation in peak season, so book ahead.

Flying in instead? Gimhae International Airport (PUS) connects to the city centre by light rail and limousine bus. Inside Busan, the metro covers the beaches, Seomyeon, and Nampo; a rechargeable transit card (the same T-money / Cashbee you use in Seoul works) is the easiest way around.

Book rail KTX tickets & Korea Rail Pass Reserve the Seoul to Busan run in advance.

Best areas for visitors.

Main beach · resorts · aquarium

Haeundae

Haeundae (Line 2)

Busan's signature beach. Wide sand, high-rise hotels, the SEA LIFE aquarium, and the Blueline Park beach train round the headland to Cheongsapo. The default first-night base for most visitors.

Beach · bridge night view · cafés

Gwangalli

Gwangan (Line 2)

Quieter beach than Haeundae, framed by the Gwangan Bridge. The whole strip is café-and-bar dense and the bridge does a light show after dark. Best sunset-to-night spot in the city.

Hillside · murals · photo spot

Gamcheon Culture Village

Toseong (Line 1) + bus

A hillside of pastel houses stacked up the slope, threaded with murals and tiny galleries. The most photographed place in Busan. Wear comfortable shoes - it is all stairs and alleys.

Downtown · shopping · food alleys

Seomyeon

Seomyeon (Lines 1 & 2)

Busan's central transfer hub and downtown. Underground shopping, department stores, and dense food alleys (the Seomyeon dwaeji-gukbap street is here). The most convenient base if you want transit over beach.

Old town · cinema square · street food

Nampo-dong / BIFF

Nampo (Line 1)

Old downtown around BIFF Square (the film-festival plaza), Gukje Market, and the Jagalchi fish market. Street-food dense, walkable, and right next to Busan Tower on Yongdusan.

Seaside temple · sunrise

Haedong Yonggungsa

Northeast coast (bus / taxi)

A Buddhist temple built right on the rocks above the sea, rare for Korea (most temples are in mountains). Go early for sunrise and to beat the crowds. Pairs with the Songjeong / Gijang side of the coast.

What to eat.

Busan is a port city, so the food leans seafood and broth. The four most local things to order:

Dwaeji gukbap 돼지국밥

Busan's signature: pork-broth rice soup, eaten any hour. The Seomyeon and Nampo gukbap alleys are the classic hunting grounds.
Milmyeon 밀면

Busan-origin cold wheat noodles, invented here by northern refugees during the war when buckwheat was scarce. Summer staple.
Ssiat hotteok 씨앗호떡

The Busan street-food version of the sweet pancake: split open and stuffed with seeds and nuts. BIFF Square is its home.
Hoe (raw fish) 회

Jagalchi is the biggest seafood market in Korea: pick your fish downstairs, eat it prepared upstairs. Eomuk (Busan fish cake) is the other local export.