Played Portstewart and Castlerock in N. Ireland nine years ago in addition to County Sligo, Donegal, Rosapenna and Ballyliffin in the Republic of Ireland. The front nine played in the dunes of Portstewart is world class fun. I thought Castlerock was a nice amalgamation of what one expects when playing links golf. Tall dunes, ocean views, Church Steeple and a train bordering the fairway. Castlerock had all of these features. Wish we could have played Portrush but they were hosting an amateur tournament the time we were there.