Hangang Pools Night Opening Guide: July 3 Start, 10 p.m. Hours, and Which Sites Are Included

The 2026 Hangang Pools night opening begins on July 3, giving evening visitors access to selected riverside swimming and water-play sites until 10 p.m. The late-night program runs through August 30, while the overall Hangang outdoor pool and water playground season has been operating from June 19 to August 30 across six locations. ¹

For readers planning a summer evening visit, the most important point is that not every Hangang water facility joins the night opening. Four sites are included, while Gwangnaru and Yanghwa remain daytime-only and close at 6 p.m. ¹

Hangang Pools Night Opening: Dates, Hours, and Sites

Night operation is scheduled from July 3 to August 30, a 59-day period confirmed in Seoul’s 2026 summer operation plan. ² During this period, the sites included in night operation are open until 10 p.m., making them an option for people who want to avoid the strongest daytime heat or visit after work or school. ³

The six facilities in the 2026 Hangang swimming and water-play program are Ttukseom and Yeouido swimming pools, plus Jamsil, Gwangnaru, Nanji, and Yanghwa water playgrounds. ¹ Based on the night-opening exclusions, visitors should treat Ttukseom, Yeouido, Jamsil, and Nanji as the late-opening choices, while Gwangnaru and Yanghwa should be planned as daytime visits only.

This distinction matters because the facilities are not all the same type. Ttukseom and Yeouido are listed as swimming pools, while Jamsil, Gwangnaru, Nanji, and Yanghwa are water playgrounds. ¹ If your plan depends on swimming-pool use rather than splash or water-play facilities, check that distinction before choosing a destination.

A Seoul Future Hangang Headquarters park official summarized the night schedule plainly in a YTN radio interview: from July 3, excluding Gwangnaru and Yanghwa, the remaining four places allow night swimming and water play “until 10 p.m.” ⁴

Admission and What to Expect

The available source material gives adult prices by facility type: adult admission is 5,000 won for swimming pools and 3,000 won for water playgrounds, while children under age 6 are admitted free. ³ The provided sources do not include a full age-by-age price list, reservation method, refund rule, or detailed ticket-purchase procedure, so readers should rely only on the confirmed adult and under-6 information above unless checking the official event page directly before departure.

Facilities are described as being arranged by age group, including adult pools, youth pools, children’s pools, and toddler pools. ⁵ That makes the Hangang sites relevant for mixed-age groups, but the exact facility mix may vary by location because the source material identifies both swimming pools and water playgrounds rather than one uniform layout.

For evening visits, the practical planning sequence is simple. First, choose one of the four night-opening sites: Ttukseom, Yeouido, Jamsil, or Nanji. Second, confirm whether you want a swimming pool or water playground. Third, plan around the 10 p.m. closing time for night-opening sites, or the 6 p.m. closing time if you are considering Gwangnaru or Yanghwa. ¹

Programs, Safety, and Demand Signals

The night opening is not only an extended-hours measure. Seoul’s plan includes special programs such as night performances at Ttukseom and music events at Nanji water playground. ⁶ The available sources do not provide a full performance timetable, so those programs should be treated as planned site features rather than a complete event schedule.

Safety and visitor support are also part of the 2026 operation plan. Reported measures include 138 CCTV cameras, 42 English information signs, and 58 safety staff members on site. ⁶ These figures are useful for visitors who want to understand how Seoul is managing larger summer crowds, especially during evening hours.

Demand has been rising. Last year’s Hangang outdoor swimming pool and water playground visitors totaled 552,003, a 77% increase from the previous year, and Seoul linked the growth in part to strong satisfaction with the expanded trial night opening that began in 2024. ⁶ The same visitor total was also mentioned in the YTN interview by Seoul Future Hangang Headquarters official Yoo Hye-mi. ⁴

One important absence from the 2026 lineup is Jamwon swimming pool. It is not operating this year because a nature-style water playground is being developed there. ² Visitors who previously used Jamwon should choose from the six operating Hangang facilities instead.

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Patrick Choi

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