The Causeway Coast Way is a linear walk that can be tackled in either direction. Following the lead of some of the local walking tour operators, this website describes the trail from east to west, or in other words, from Ballycastle to Portstewart.
The trail desciption is broken down into small sections of between a two to five hours walk. There are many public transport options available all along the trail which make it very accessible from the start and end of each section described. More information on this can be found on the Travel section.