• Siheung Lotus Theme Park – The Lotus Theme Park can be visited all-year-round by bikers and pedestrians, but the peak months for seeing the lotus plants in bloom are July and August. It is also the site of a summer festival. Seven varieties of lotus and over thirty varieties of waterlilies are cultivated at the park. Admission to the theme park during the summer months is free, and lotus viewing tours take place from 9:00 a.m. to 2:00 p.m. local time. The theme park can be reached by several city bus routes. • Siheung Gaetgol Ecological Park – There is a rare inland
gaetgol present in the park that is exposed twice a day at low tide. It can also be called a "serpentinized mudflat" because it looks like a snake. • The Soraesan mountain – Unlike other mountains, Soraesan has a moderate slope, moderate rock climbing, and even a forest path. The
Maae-sang of Soraesan, built during the
Goryeo Dynasty, is carved on a huge rock in the middle of the mountain and is a major feature of Soraesan. There are various sports facilities, reading forests, and strength-building exercise stations build using wooden ropes. It is 5-kilometers away from the summit to the entrance of the Naewonsa Temple. In addition, the Soamcheon mineral spring and Cheongryong mineral spring provide quality water to visitors to the Soraesan forest bath. On a clear day, the summit overlooks the sea near Seoul. • Salt fields – It is 136,000
m² (450,000
pyeong) wide. The vividness of barley, the splendor of flowers, and the beautiful ridges of the tidal flats attract many visitors. •
Oido – it is an island on the West Coast region of South Korea's Gyeonggi Province (also known as Gyeonggi-do). Nearby attractions include Oido Paechong () and Okgu Park (), and people can experience mud flat experience, boarding experience, and sea fishing. • Wave Park () is a
water park opened in October 2020. Constructed on 166,000 square meters of land the park consists of the world's largest artificial wave pool for
surfing and facilities for enjoying other water sports activities, such as
canoeing and
scuba diving. ==Sister cities==