In 1995 there were three drying patches[clarification needed] recorded to the north-northeast and east-southeast of the Mid Haisbro light buoy.

Except at slack water their positions are indicated by tidal eddies particularly on the northwest, and in slight or moderate seas the swell breaks on the shallower parts of the banks.

The sands also provide nursery grounds for Cod Gadus morhua, Herring Clupea harengus, Mackerel Scomber scombrus, Sole, Lemon sole and Plaice Pleuronectes platessa.

[3] There are small numbers of Harbour porpoise regularly observed within the boundaries of the sands.

The common seals Phoca vitulina which are resident in the Wash are occasionally observed in this area.