Eulmildae

Gyeongui Line Forest Park

It has no gate, no fee and no closing time, but it also has no car park anywhere along its 6.3 km — the operator says so outright and tells you to come by train. Which is fitting for a park that used to be one.

AK Plaza Hongdae

A shopping mall standing over Hongik University Station. It never takes a closing day, and on weekends and public holidays it opens half an hour earlier than on weekdays.

KT&G Sangsangmadang Hongdae

A cultural complex with galleries, pop-up exhibitions, shops, a cinema and a live hall in one building. Check the dates and hours in the listing for the exhibition or performance you want to see.

Yeouido Hangang Park

Free, ungated and open around the clock — and governed by a fine schedule most visitors never read. Camping or cooking outside a designated spot is KRW 1,000,000 for a first offence, and parking outside a marked bay is KRW 50,000.