Ķemeri National Park is a national park west of the city of Jūrmala, Latvia. Established in 1997, Ķemeri is the third largest national park in the country by area, covering an area of 381.65 km². The territory of the park is mostly occupied by forests and mires, the most significant of them being The Great Ķemeri Bog. There are also several lakes, that are former lagoons of the Littorina Sea. Lake Kaņieris is a Ramsar site. The park also protects the famous natural mineral-springs and muds, used for centuries because of their therapeutic nature. The springs led to development of many resorts, spas, and sanitariums in the 19th century.