Grimsthorpe Castle Park & Gardens - Welcome to Grimsthorpe Castle Park and Gardens Grimsthorpe is a historic house, park & garden in Lincolnshire, open in the summer for adults and children to enjoy the countryside, nature and history. We have now closed for 2009. The 2010 season begins on April 1st. During the Winter you can use the website to find out more about our plans for the 2010 season. Group organisers can research, plan and book visits online. Grimsthorpe.co.uk~Site InfoWhoisTrace RouteRBL Check