Tourists visit the Frost Magical Ice of Siam in Chon Buri Province, Thailand, Dec. 1, 2020. The Frost Magical Ice of Siam, covering an area of 30,000 square meters, is kept at a temperature of minus 10 degrees Celsius. (Xinhua/Rachen Sageamsak)

A tourist visits the Frost Magical Ice of Siam in Chon Buri Province, Thailand, Dec. 1, 2020. The Frost Magical Ice of Siam, covering an area of 30,000 square meters, is kept at a temperature of minus 10 degrees Celsius. (Xinhua/Rachen Sageamsak)

A child plays on a slide at the Frost Magical Ice of Siam in Chon Buri Province, Thailand, Dec. 1, 2020. The Frost Magical Ice of Siam, covering an area of 30,000 square meters, is kept at a temperature of minus 10 degrees Celsius. (Xinhua/Rachen Sageamsak)

Tourists visit the Frost Magical Ice of Siam in Chon Buri Province, Thailand, Dec. 1, 2020. The Frost Magical Ice of Siam, covering an area of 30,000 square meters, is kept at a temperature of minus 10 degrees Celsius. (Xinhua/Rachen Sageamsak)

Tourists visit the Frost Magical Ice of Siam in Chon Buri Province, Thailand, Dec. 1, 2020. The Frost Magical Ice of Siam, covering an area of 30,000 square meters, is kept at a temperature of minus 10 degrees Celsius. (Xinhua/Rachen Sageamsak)

A tourist visits the Frost Magical Ice of Siam in Chon Buri Province, Thailand, Dec. 1, 2020. The Frost Magical Ice of Siam, covering an area of 30,000 square meters, is kept at a temperature of minus 10 degrees Celsius. (Xinhua/Rachen Sageamsak)

A tourist visits the Frost Magical Ice of Siam in Chon Buri Province, Thailand, Dec. 1, 2020. The Frost Magical Ice of Siam, covering an area of 30,000 square meters, is kept at a temperature of minus 10 degrees Celsius. (Xinhua/Rachen Sageamsak)

A tourist visits the Frost Magical Ice of Siam in Chon Buri Province, Thailand, Dec. 1, 2020. The Frost Magical Ice of Siam, covering an area of 30,000 square meters, is kept at a temperature of minus 10 degrees Celsius. (Xinhua/Rachen Sageamsak)

A tourist visits the Frost Magical Ice of Siam in Chon Buri Province, Thailand, Dec. 1, 2020. The Frost Magical Ice of Siam, covering an area of 30,000 square meters, is kept at a temperature of minus 10 degrees Celsius. (Xinhua/Rachen Sageamsak)

A tourist plays on a slide at the Frost Magical Ice of Siam in Chon Buri Province, Thailand, Dec. 1, 2020. The Frost Magical Ice of Siam, covering an area of 30,000 square meters, is kept at a temperature of minus 10 degrees Celsius. (Xinhua/Rachen Sageamsak)