Holyhead has a lot to offer cruise visitors, from a magnificnt harbour & breakwater, the country park, South Stack, Maritime museum, Newry beach, Roman Fort, St Cybi's church, standing stones, hut circles, plenty of birds for the twitchers, stunning scenary and we have not even got on to Anglesey yet...... we need to boost Holyhead up not shoot it down all the time.....
Cruise ships used to tender at Holyhead, they now berth at a new pier. You'll know that there's a good frequent rail service along the N Wales coast - Conwy, Rhyl, etc. ......... Or Busybus offer minibus tours specifically targetted at cruise ships visiting Holyhead http://www.busybus.co.uk/sightseeing-tours/cruise-excursions.
You have obviously been away for a long time, whilst the town centre may be uninspiring the tourist industry have cruise ship excursions taking guests around the isle including Beaumaris Castle or to Caernarfon Castle and then on the Welsh Highland Railway to Beddgelert before continuing to Portmerion, other trips include Conwy Castle & Langollen. I am not resident in Wales nor part of their tourist industry but I do feel Holyhead is a great port of call for anyone interested in magnificent scenery and/or British history .....Richard B .