Undersea Tunnel - Tongyeong
해저터널-경남 통영
Culture · Dang-dong, Tongyeong-si, Gyeongsangnam-do
Nearby stations and stops
- Bus stop 해저터널 · straight-line 91m
- Bus stop 두룡초등학교 · straight-line 205m
Straight-line distance; the actual walk is longer · Data as of 2025-10-31
Source: Ministry of Land, Infrastructure and Transport nationwide bus stop locations
- Admission
- Not provided
- Hours
- Open 24 hr
- Closed
- Not provided
- Parking
- Undersea Tunnel Public Parking Lot
- Pets
- Not provided
- Accessibility
- Not provided
- Data status
- Source: Korea Tourism Organization TourAPI · Source updated: 2024-01-03 · Collected: Not provided
Constructed over a 16-month period from 1931 to 1932, the undersea tunnel in Tongyeong is Asia’s first submarine tunnel. For its construction, the sea water was blocked at both ends, the tunnel was dug underground, and was paved with concrete. The Korean word “Yongmundalyang” engraved at the entrance of this 483-meter long, 5-meter wide tunnel means “the entrance of an undersea tunnel that connects island to land.”

In the area
Tunnels 1 of 25 attractions in Tongyeong-si
Similar places in other regions
- Suyanggae Light Tunnel · Chungcheongbuk-do
- The 2nd Tunnel (제2땅굴(철원)) · Gangwon-do
- The 3rd Tunnel · Gyeonggi-do
- The 4th Tunnel · Gangwon-do
- Seongnyugul Cave [National Geopark] (성류굴 (경북 동해안 국가지질공원)) · Gyeongsangbuk-do
Source: Korea Tourism Organization TourAPI