Cheonsangui Jeongwon Aquatic Plant Learning Center in Okcheon is a botanical garden built around aquatic plants. Visitors can walk through gardens of flowers and trees and see views of Daecheongho Lake. Booking a time slot on Naver is confirmed on site by the last digits of a phone number, and one loop around the garden takes about an hour. Part of the access road is a single lane, so inexperienced drivers should take care.