FechTin Go · South Korea · Gyeonggi

Jinho Jung from Seoul, South Korea · CC BY-SA 2.0
An abandoned granite quarry flooded into a jade-green lake, walled on all sides by sheer cut rock.
For decades Pocheon granite was cut to build Seoul; when the quarry ran out and was abandoned, groundwater rose and filled the pit, making a strangely jade-coloured lake ringed by vertical faces still showing the saw marks. Rather than fill it in, the county turned it into an arts park: a monorail crawls up to the rim, an open-air stage uses the rock face as its backdrop, there is a small observatory, and stone sculptures line the paths. The water is deep and cold year-round so swimming is banned, but seen from the viewing deck the colour is hard to believe.
May–June and September–October
5,000 KRW (3,000 teens, 1,500 children); the monorail is a further 5,300 KRW return
2 hours
09:00–19:00
Source: https://english.visitkorea.or.kr/svc/whereToGo/locIntrdn/rgnContentsView.do?vcontsId=66111
Updated: 2026-08-04