Bucheon Lake Botanical Garden Supia is an indoor botanical garden inside Sangdong Lake Park in Bucheon, reachable on foot from Samsan Gymnasium Station and Sangdong Station. It displays about 430 species, including palm trees, subtropical plants, and baobab trees, and has cafes on the first and second floors. Online reservations allow entry without waiting, and one hour is enough for a visit. The indoor space is not large.