Sanmaru Playground

Sanmaru Playground is a small children's playground in the hillside neighborhood of Changsin-dong in Seoul. It has a sand play area, a jungle gym, a slide, and an indoor reading space, along with an observation deck with views of Namsan and Dongdaemun. Both day and evening are quiet, and dogs can be walked here. The uphill path is steep, so walking there is difficult.