Imray Y17 River Colne to Blackwater
- Continuation of River Colne to Colchester (1:35 000)
- Brightlingsea (1:15 000)
- Tollesbury Marina (1:12 500)
- Bradwell Marina (1:12 500)
- Burnham Yacht Harbour (1:12 500)
- Continuation of River Roach to Rochford and Havengore Creek (1:35 000)
On this 2017 edition the latest depth surveys have been included. The chart specification has been improved to show coloured light flashes. There has been general updating throughout.