Making models out of sand 20/08/2024 FacebookTwitterEmail CREATING CASTLES: Believed to be taken at a 1972 Cellulose picnic day is this photo of an unidentified sand castle competition winner. (Supplied) Another photo of an unidentified sand castle creator from a '70s Cellulose picnic day on the Southend beachfront. Hopefully someone […] Subscribe or Login to see the rest of the content. Username Password Remember Me Forgot Password