Hi, there are many expensive boutiques there downtown. You can try: 1.) Abbey Centre, Newtownabbey. 2.) You should not miss Royal Avenue, passing the Belfast City Hall, you get to Grosvenor Road. 3.) Turn around and visit Victoria Shopping Centre (House of Fraser). 4.) Another day, do not forget to visit LISBURN ROAD that is quite long road full of good shops and boutiques.
Kind regards,
Ales