Seymour square is a park in central Blenheim notable for its memorial clock tower constructed to remember those killed in the Great War (World War I). A hectare of land was originally set aside as a reserve in 1857, and named after Henry Seymour, one of the original owners of the land that subsequently became Blenheim. Seymour Square was selected by popular vote in 1925 as the site for a war memorial, and the clock tower was officially unveiled on February 6, 1928. On December 23 1953, the Blenheim and District World War II Memorial Fountain, designed by E. Hubbard, was unveiled by the vice-president of the NZ R.S.A. Seymour Square continues to be used as a venue to commemorate ANZAC Day in Blenheim.
In addition to the war memorials, Seymour Square also has extensive flower beds, and is used for the annual garden fête that takes place during Garden Marlborough.