Two days on Jeju: Jeju City and the East, honestly, not the whole island Two days is enough for Jeju City and the East coast loop, Seongsan Ilchulbong and Manjanggul, plus Udo if you skip something else, and that is genuinely all it is enough for. The South, West and Hallasan quadrants need their own days; see the 3-day through 7-day versions of this route, or the Jeju budget guide for the car-versus-bus math behind the whole trip.

Three days on Jeju: Jeju City, the East, and Seogwipo’s waterfalls Three days adds Seogwipo’s waterfalls and Jusangjeolli’s basalt cliffs to the East Coast loop from the 2-day itinerary , still skipping Hallasan and the West coast; those need the 5-day and 4-day versions. See the Jeju budget guide for the car-rental math behind this route. Book these before you go: A rental car for the full trip , since this route changes base city on Day 2.

Four days on Jeju: all four coastal quadrants, no Hallasan yet Four days is the shortest version of this route that touches all four coastal quadrants: Jeju City, the East (Seongsan, Manjanggul), the South (Seogwipo’s waterfalls, Jusangjeolli), and the West (Sanbangsan, Hyeopjae, Aewol). Hallasan still doesn’t fit; that needs the 5-day itinerary . Shorter on time? See the 2-day and 3-day versions, or the Jeju budget guide for the full cost breakdown.

Five days on Jeju: the full loop plus a real Hallasan day Five days is the shortest version of this route with a genuine Hallasan day built in, on top of the four coastal quadrants from the 4-day itinerary : Jeju City, East, South, West, then the mountain itself. Doing it in less time? See the 2-day through 4-day versions; going longer, the 6-day and 7-day add Udo and a buffer day.

Six days on Jeju: the full loop, Hallasan, and a real day on Udo Six days adds a dedicated day on Udo island to the 5-day itinerary’s full loop plus Hallasan. Udo only gets a passing mention on shorter trips because it’s a genuine half-to-full-day detour; here it earns its own day. Tighter on time? See the 4-day and 5-day versions; the 7-day itinerary adds one more buffer day on top of this.

Seven days on Jeju: the full loop plus a genuine buffer day Seven days takes the 6-day itinerary’s full loop, Hallasan and Udo, and adds a free Olle-trail morning and a real buffer day back in Jeju City. That slack matters more than it sounds: Jeju’s July-September typhoon risk and Hallasan’s changeable summit weather can both bump a day sideways, and this is the version of the route with room to absorb it.

Jeju Island budget basics: what this island actually costs Jeju is South Korea’s volcanic island, not a separate country, and it runs on the Korean won (KRW, roughly 1,490 to the US dollar, though that rate drifts). Budget travelers spend roughly $52-70 a day here; mid-range runs closer to $140. The single biggest decision is transport: rent a car (with a physical International Driving Permit obtained before you fly, since Korea does not issue one on arrival) or lean on buses that add real time to any multi-stop day.

Jeju’s marquee sights, ranked by what they actually cost Jeju’s real draw is genuinely cheap: the two headline paid sights run 4,000-5,000 KRW (roughly $3), Hallasan National Park’s entry costs nothing at all, and the Olle coastal trails and several beaches are free. Skip the theme-park glut around Jungmun, Loveland, the Teddy Bear Museum and the wider cluster of small private museums, and put that money toward the volcanic and coastal sights below instead.