Lee Young-Joon (Park Seo-Joon) and Kim Mi-so (Park Min-young) take a walk here in episode 10 of Why Secretary Kim/What’s Wrong With Secretary Kim (김비서가 왜 그럴까) (tvN, 2018). He tells her that had he known the significance of the day to her and her sisters (their mother’s birthday), he wouldn’t have come along on their family trip; however, Mi-so assures him that she’s happy that he came along.
Jebudo Waterwalk [제부도 워터워크] is a walkway and observation area that opened in March 2018 in Jebudo Island [제부도], built over a section of the sea that parts during low tide (like when the WSK scene was filmed). It is located at South Korea’s east coast, in the village of Songgyo-ri [송교리] in Seosin-myeon [서신면], in the city of Hwaseong (화성시), Gyeonggi Province; around 2 hrs south-west of Seoul by public transport.
Address: 377-46 Songgyo-ri, Seosin-myeon, Hwaseong-si, Gyeonggi-do, South Korea
경기도 화성시 서신면 송교리 377-46
Geolocation: 37.174768, 126.655013
Getting here: Bus stop ‘Jebudo Island Entrance’ [제부도입구]; Bus no 330, 120m from here.
— submitted by Mich KDL