Ha Wan-Seung (Kwon Sang-Woo) and Yoo Seol-Ok (Choi Gang-Hee) are looking here for her in-law that fell prey to a serial murderer in episode 7 of Mystery Queen (2017).
In episode 2 of What’s Up Fox/Foxy Lady (여우야 뭐하니) (MBC, 2006), Go Byung-hee (Go Hyun-jung) comes here and – wile watching the sunset in front of the lighthouse – marvels about how close the sea is from Seoul – only a metro ride away. Later at night, she consults a fortune teller close to the lighthouse.

Oido Red Lighthouse [오이도빨강등대] is located in Siheung’s [시흥시] neighborhood Jeongwang-dong [정왕동].

Address: 175 Oido-ro, Siheung-si, Gyeonggi-do
경기 시흥시 오이도로 175
(정왕동 2003-16)
Geolocation: 37.345438, 126.687441

Getting here: Jeongwang Station [정왕역], Seoul Subway Line 4, Exit 1
 
— submitted by Marion KDL