What is "caldy"

Caldy is a small, affluent village on the Wirral Peninsula, England, located to the south east of West Kirby. It is part of the West Kirby & Thurstaston Ward of the Metropolitan Borough of Wirral and is situated in the parliamentary constituency of Wirral West. At the time of the 2001 Census, Caldy had 1,290 inhabitants, of a total ward population of 12,869.