Jeju

LG전자 · CC BY 2.0
A volcanic island in the south with a crater lake on Hallasan, lava tubes beneath the ground and haenyeo diving off its shores.
Jeju is a short flight from the mainland but feels like its own country: a dialect even Seoulites struggle with, black stone walls stacked without mortar along every field, and dol hareubang stone grandfathers guarding the village gates. The island is one volcanic mass — Hallasan in the middle, more than three hundred small oreum cones scattered around it, and a system of lava tubes running underneath. Haenyeo women still dive without air tanks for abalone, a trade now fading. The east coast takes the sunrise, the west keeps the sunset, and the Olle trail stitches it all together in 27 coastal walking stages.
Best time to visit: April–June and September–November
Korea's highest peak — a dormant volcano with a crater lake sitting right on its summit.
A lava dome standing like a stone bell, above a shore of layered rock folded like dragon scales.
Four hundred and twenty-five kilometres of walking trail around the island, in twenty-seven coastal stages.
A volcanic crater rising straight out of the sea like a stone crown, at its best at sunrise.
White sand and shallow water facing Biyangdo island — the finest sunset on Jeju's west coast.
A museum to the women who dive without air tanks — a trade fading with its last generation.
Four hundred metres of covered market: hallabong tangerines, black pork and fish cakes stacked in heaps.
A tunnel carved underground by flowing lava, cold and pitch dark in every season.
A lived-in village of rope-lashed thatch and black stone walls stacked without mortar.
The world's largest pure stand of nutmeg yew — over two thousand trees, the oldest eight hundred years old.
A waterfall in a subtropical gorge right behind the city, floodlit until late.
One of Asia's rare waterfalls that drops straight into the sea, on the edge of Seogwipo city.
Thousands of vertical hexagonal stone columns by the sea, formed as lava cooled.
A small island shaped like a lying cow, easy to circle by bike in half a day.