Busan has no centre to speak of. It has a coastline, roughly forty kilometres of it, folded around mountains that push the roads inland and the railways into tunnels. Nothing about the city rewards the usual approach of booking a hotel in the old town and walking out of it, because there is no old town, and the things worth seeing sit at opposite ends of a long ribbon. The difference between four good days here and four tiring ones is almost entirely a matter of which sights you group together, which hour you take each one at, and which you are willing to leave out.
So this is a ranking, and it is argued. Three things decide the order: whether you could get the same thing somewhere else in Korea, whether it survives a crowd, and whether it repays the travel time it costs. Autumn is the season we would choose for all of it, because the sea holds its summer warmth into October, the maples above Beomeosa turn from the middle of that month, and the film festival takes the first half.
1. Gwangalli Beach, and the Saturday the drones go up
Gwangalli is the beach the city itself uses. It is smaller than Haeundae and the sand is coarser, and the reason to be there is the view out to Gwangan Bridge, a suspension crossing of roughly seven and a half kilometres that is lit after dark and stands in for the skyline this city otherwise lacks.
On Saturday evenings the municipality flies its drone show over the water: around eleven hundred machines, about twelve minutes, two performances a night, typically at something like eight and ten in the evening from spring through September and an hour earlier from October onward. It is free, it is genuinely good, and on holiday editions the fleet has run to three thousand. It is also the first thing cancelled by wind, rain or an approaching typhoon, usually announced the day before or on the day, so treat it as a bonus rather than a fixture. The beachfront pavement fills long before the first launch; Millak Waterside Park, a short walk east, is calmer and the angle barely suffers.
2. Haedong Yonggungsa, taken at opening
Korean temples are mountain buildings almost without exception, which is exactly what makes this one worth the ride out to Gijang: it is built onto black rock at the waterline, and the sea breaks below the courtyard. The traditional founding is 1376, by the monk Naong, and most of what stands is a twentieth-century rebuilding. That matters less than you would think, because the site is the point.
Entry is free and the gates open well before dawn, typically around half past four, which is the whole trick. Arrive in the first hour and the stone staircase down to the temple is yours; by mid-morning it is single file in both directions and the photograph everyone came for has forty strangers in it. Allow an hour, or ninety minutes with the food stalls on the approach. The simplest route is bus 181 from Haeundae station, about forty minutes. Coming on the Donghae Line, get off at Osiria and take a local bus or a short taxi.
3. Gamcheon Culture Village, early and on a weekday
The murals on this hillside above Saha-gu date from a public art project begun in 2009, in a neighbourhood that was steadily emptying. Tourism copy sells the place as the Santorini of the South Sea and the Machu Picchu of Busan; both comparisons oversell it and neither is the reason to go. Go because the layout is legible in a way that almost nothing in a modern Korean city is, houses stacked so that no roof blocks the one behind, alleys a metre wide, stairs where a street should be, and because the history under the paint is a refugee settlement from the Korean War.
People live here. The village is most bearable, and most defensible, early on a weekday, roughly the first two hours after eight, before the coaches and while the residents still have their own alleys. The information centre near the entrance sells a map for around two thousand won that sets out a stamp trail through the workshops and viewpoints. Two hours is enough. It is steep, and going down is far easier than coming up, so take Line 1 to Toseong and the Seo-gu village bus 2 or 2-2 up to the top.
4. Nampo in one half-day: Jagalchi, Gukje, BIFF Square and the Kkangtong market
Four sights inside one block of old downtown, which makes this the most efficient half-day in the city. Start at Jagalchi, which the city bills as the largest fish market in Korea: you buy on the ground floor and carry it upstairs to be prepared. Expect the fish itself to run into the tens of thousands of won for two, with a separate small charge for the cooking and the side dishes that arrive unasked.
Gukje market next, the postwar trading ground that grew out of goods moving through the port, now a maze of covered lanes selling kitchenware, fabric and hardware to people who actually need it. Then BIFF Square, where ssiat hotteok, the seed-stuffed pancake, is pressed and fried in front of you for a couple of thousand won. After dark the Bupyeong Kkangtong night market a few minutes away is where to eat if Jagalchi felt like too much commitment, and the second-hand bookshops of Bosu-dong alley sit on the same walk.