Long drainage channels were cut inland with smaller drains interspersed at right angles. The overall result has created some of the most productive land in Northern Ireland. Here you will find crops such as cereals, potatoes, carrots, willow, rapeseed oil as well as turf culture. The area has two distinct sea walls, the Ballykelly Bank which runs towards Derry and the Ballymacran Bank which runs to the mouth of the River Roe. The road will take you to a car parking area between the two. These are high sea defences with a large back drain on the land side, this provides another haven for wildlife. Over the bank are the tidal mudflats which are well known for the thousands of waders and wildfowl that come to winter here.