New artificial habitats including a living sea wall, rock pools and hanging fish shelters are being installed at Whitby Harbour as part of a pilot project to boost biodiversity and improve water quality in the River Esk.
The man-made marine habitats are being created as part of Beach ESK, a partnership project between the Environment Agency, Yorkshire Wildlife Trust and Groundwork North East, supported by private local landowners, Scarborough Borough Council and Yorkshire Water.
Yorkshire Post photographer, James Hardisty, takes a look at the work going on there.