Take a guided tour of Moaning Cavern or get a rush from the rope rappel or caving adventures. Zip lines, climbing and searching for gold and gemstones are other activities offered. Embark on an underground walking tour, or race to the top of a 32-foot tall custom climbing tower with 10 routes and an automatic belay system.

The Hall of Flame Fire Museum is a fascinating tribute to the history of firefighting showcasing an extensive collection of fire equipment and memorabilia, which traces the evolution of firefighting from the 19th century to the present day. Visitors can explore vintage fire trucks, helmets, and gear, as well as interactive exhibits that highlight the challenges and advancements in firefighting techniques over the years. The museum also features displays dedicated to notable fires in history and the brave firefighters who responded to them.

The Cheonggyecheon was originally a creek that flowed through downtown Seoul -- in the wake of rapid post-war economic development, it was buried under concrete to facilitate urban expansion. Today, however, the over 10 km-long creek and its banks have been uncovered and remodelled into an exciting recreational area for locals and tourists, with clean water and natural habitats bordering on residential and office buildings.