Summer The bunker is open every day from the 20th of March until the 31st of October. From 10.30am to 5.30pm. Winter The bunker is open every Saturday and Sunday during the winter from 11.00a.m. to 4.30p.m., except during December when the bunker is closed all month. The bunker is also open daily during the school half term holidays in February & October. Information Line For latest details of opening times, please ring the bunker information line on 01270 629219