Onyang Oncheon Land is a family spa in Asan, near Onyang Oncheon Station, with a hot spring pool, a jjimjilbang, and children's play facilities. It has lukewarm water, a toddler pool, different water play areas on each floor, and an indoor kids cafe. The water play areas are split between the 5th and 6th floors, with a space reserved for children 24 months and under. On weekends, visitors crowd in and jjimjilbang seats run short.