Map sheet number 252 in the OS Explorer series covers the Norfolk coast around Cromer, Sherringham & areas to the south & inl&. Highlights of the area include: the River Bure, North Walsham, Aylsham, Walcott, Mundesley, Trimingham, Weybourne & the Peddars Way & Norfolk Coast Path national trail. With this map you will receive a code for use on your i OS or Android smartphone or tablet. Find our more at Mobile Download FAQ. The OS Explorer map for Norfolk Coast East is available in both the standard paper version & weatherproof ' Active' version.