Submarine tours on Jeju Island
Jeju Island has two passenger submarine tours: one from Seogwipo on the south coast and one from Seongsanpo Port on the east coast.
Local experiences (2)
Compare the departure locations below. A regional guide can include different islands or ports.
Planning your visit
| Experience | Departure | Dive depth | Time to allow |
|---|---|---|---|
| Seogwipo Submarine | Seogwipo, south coast | About 40 m / 130 ft | About 70 minutes for the visit |
| U-do Submarine | Seongsanpo Port, east coast | Confirm with operator | Confirm transfer and dive time |
Trip times include different stages of the visit; a total tour time is not the same as time underwater. Departure and dive details come from the guide sources. Open a listing for price details.
Choose the south coast or the east coast
Seogwipo Submarine visits the waters around Munseom Island from Jeju's south coast. The U-do submarine departs from Seongsanpo Port on the east coast, near Seongsan Ilchulbong. They are different departure areas and routes, so choose the one that fits your driving or public-transport itinerary.
If you are comparing them, begin with your hotel and the other places you want to visit that day. Check the journey to the correct ticket office before reserving a departure; a search for “Jeju submarine” alone does not identify which port you need.
What the published trip details tell you
Korea Tourism Organization describes Seogwipo's route as a soft-coral and shipwreck experience reaching about 40 m. It gives an approximate visit duration of 70 minutes. Treat that as time for the visit, rather than assuming all 70 minutes are spent underwater.
Visit Jeju describes a boat transfer from Seongsanpo Port to the U-do submarine dock. Ask the operator to confirm both the transfer time and the underwater portion when comparing the two tours. We have not included a U-do dive depth in the table because we could not verify it reliably.
Booking times and fares
The tourism listings describe year-round operation, but departures depend on weather and operating conditions. Confirm the day's schedule before travelling to the port, and ask how early your party needs to arrive. Leave space between the submarine visit and another reservation so a transfer or departure change does not spoil the rest of your day.
Korea Tourism Organization's Seogwipo page displays more than one adult fare. Ask the operator for the current total in Korean won, the applicable child band and any extra charges instead of treating that page as a confirmed quote. For U-do, request a dated price for your party directly from the operator.
Questions for families and visitors with mobility needs
Before paying, confirm minimum age or height requirements, the boat transfer, and how passengers enter and leave the submarine. Ask about ladders and whether assistance is available. A published child fare or a family activity label does not establish that an infant or a passenger with limited mobility can board.
If commentary matters to your visit, ask which languages are offered on your specific departure. Keep the operator's contact details and your booking confirmation available for the journey to the port.
Planning your budget? Our submarine tour cost guide compares published ticket prices, deeper dives and private charter quotes.
Guide reviewed October 2026. Check dates, departure instructions and current prices with the operator before booking.
Guide sources
- Korea Tourism Organization — Seogwipo route, approximate visit time and address. Displays conflicting adult fares; confirm price with operator.
- Visit Jeju — U-do departure port and boat transfer; confirm dive depth with the operator.