IMR Y12 Rivers Stour And Orwell Scale: 1:35 000 WGS 84 Imray Plans included: Upper Orwell to Ipswich (1:20 000) Fox’s Marina (1:10 000) Woolverstone Marina (1:10 000) Suffolk Yacht Harbour (1:10 000) Shotley Marina (1:10 000) For this 2018 edition the chart has been fully updated throughout with revised depths and the latest harbour developments.