There are nine scenic routes that loop off the main Causeway Coastal Route which give you the opportunity to explore the more rural areas of north Antrim and Derry, they also cover a wide variety of landscapes from mountain tops to fertile valeys and include the nine Glens of Antrim.
Each drive has its own unique characteristics and places of interest, most are on B roads so smaller than the main route but but still with two lanes and a line down the centre of the road, however, three of the drives have smaller roads with no dividing line down the middle where you do need to slow down and be alert for oncoming traffic. They are still very safe providing you take care, if you are unsure, check my facebook page where you will find images taken on all the scenic drives which loop of the main Causeway Coastal Route.
The drives vary in length, some like the Roe Valley, Bann Valley and Glenshesk take you to other small villages and towns where you can find rural shopping and refreshments. As I mentioned the scenic drives cover all the nine Glens of Antrim.
One final word, wherever you travel in the world including here in Ireland, there are always the odd moron willing to break the law. So when you park your car to go for a walk check you have locked it and do not leave any valuable visible inside the car. Put them in the boot, glove compartment or on the floor covered with something. Reducing the temptation reduces the opportunity and the risk.