Source: The Korea Herald

What happened

According to The Korea Herald, the Seoul Metropolitan Government announced plans to designate the entire 8.12-kilometer stretch of Cheonggyecheon as a no-smoking, no-drinking zone by the end of 2026, with fines of up to ₩100,000 (about $70). The city also plans to ban swimming and bathing in the stream.

The push follows incidents the Herald cites: a Chinese tourist smoking by the stream on August 3, and a man and a woman wading into a wishing pond on July 19 to collect coins reserved for city collection. The stream, restored in 2005, remains a downtown summer draw for residents and tourists.

The breakdown

Current administrative guidelines already let the mayor advise against fishing, swimming, bathing, smoking, and drinking — but those advisories lack legal weight, so patrols cannot fine. The planned designation flips soft guidance into enforceable prohibition: once live, the four districts along the stream can ticket violations.

Geography matters. The zone runs from Cheonggyecheon Plaza to the confluence with Jungnangcheon. It applies to the walking paths along the stream — the lower level reached by staircases or ramps — not the streets and sidewalks above. A beer or cigarette on the road-level sidewalk is a different surface than the same act on the stream promenade after the ban lands.

Why it matters outside Korea

Cheonggyecheon is a default downtown cool-down stop for short-stay visitors and Seoul-based expats. Many overseas guests treat the path like a casual park where a can and a smoke feel normal. Seoul is signaling the opposite: the restored stream is becoming a fine-backed behavior zone, not an unpoliced hangout. Update the “stream picnic” script now — do not wait for the first ticket photo to circulate.

What travelers and expats should watch

• Do keep smoking and open alcohol off the lower walking paths once the designation is live; assume patrols can fine up to ₩100,000, not only lecture.
• Don’t treat “feet in the water” heat relief or a full dip as harmless — swimming and bathing are in the planned ban set, and recent wading-plus-coin incidents already drew public scrutiny.
• Expect the rule to apply on the stream promenade, not automatically on every sidewalk above; still, if you are unsure which level you are on, default to no smoke / no drink.
• Re-check city notices before a late-2026 visit: the Herald’s lead can read as fines arriving this year, while the body frames the full-path designation by end-2026 — treat start date and signage as still moving until the city posts the enforceable map.

Context

Read this as Seoul converting an advisory stream into a ticketable promenade, not as a sudden anti-tourist crackdown. Korelay’s frame: the viral smoking and coin-collecting clips are the trigger story; the useful read is that Cheonggyecheon’s 2005 restoration brand — green downtown relief — now comes with path-level compliance. Plan the walk for shade and photos; leave drinks and cigarettes for a licensed venue, not the wishing-pond edge.

Source

Primary: The Korea Herald — Smoking, drinking to be banned at Cheonggyecheon. Paraphrased for briefing; read the original for full detail.