Sejong National Arboretum is hosting its annual nighttime opening through Oct. 11, offering visitors a romantic, illuminated garden experience.

This year’s event features enhanced lighting displays across key areas including the Four Seasons Greenhouse, Festival Plaza and the Korean Traditional Garden in Sejong. Weekend cultural events such as orchestra performances, traditional Korean music festivals, open-air cinema and immersive story-based shows are to be held every Saturday at 7:30 p.m.

Admission is 2,500 won for adults, 2,000 won for teens and 1,500 won for children.

The 2025 World Heritage Festival runs until Oct. 22, with events in Jeju City and other designated heritage sites across Korea.

The festival celebrates UNESCO-listed World Heritage sites through immersive programs that reflect their "Outstanding Universal Value." On Jeju Island, visitors can join walking tours along volcanic landscapes and nighttime hikes at Hallasan and Seongsan Ilchulbong.

Programs also include busking by local musicians, interactive exhibitions and community storytelling at heritage villages. For younger participants, guided explorations into restricted lava caves offer rare educational experiences.

Semiwon’s Lotus Cultural Festival in Yangpyeong, Gyeonggi Province, celebrates the beauty of lotus and water lilies through Aug. 10.

Held in a water garden dedicated to ecological harmony, it features nighttime concerts, traditional performances, art exhibits and hands-on classes such as lotus tea-making.

Admission is 7,000 won for adults and 4,000 won for children, teens, seniors and groups.

The Yangpyeong Catfish Whiskers Festival in the village of Sumimaru in Yangpyeong, Gyeonggi Province, runs through Sept. 7.

Known for its clean water and presidential award-winning rural charm, the festival offers hands-on experiences such as fishing for catfish, fruit syrup-making, all-terrain vehicle rides and more. Visitors can enjoy bubble play zones, picnics and traditional meals like spicy fish stew.

Admission ranges from 19,000 won to 49,000 won, depending on activity packages.

The Hwadam Forest Summer Hydrangea Festival in Gwangju, Gyeonggi Province, runs through Aug. 22, showcasing more than 70,000 hydrangeas across 100 varieties.

Set against lush greenery and cascading waterfalls, the 4,500-square-meter Hydrangea Garden is the centerpiece of the event, featuring mountain hydrangeas, mophead hydrangeas, oakleaf hydrangeas and more. The festival includes guided forest tours and hands-on programs like bonsai classes, moss terrarium crafting and insect observation.

General admission is 11,000 won for adults, 9,000 won for teens and seniors and 7,000 won for children.