Bus from the waterside railway station to bus centre in Derry Londonderry

This the bus to the city centre in Derry Londonderry it's is a free bus.it is there for all train come to the Northern Ireland railway's Waterside railway station.and you can get the bus back to the waterside railway station too.it is 2d service from Translink Foyle metro some time they use the a Translink Goldliner bus too.