Seven of Ireland golf courses are included in a list of the best 100 golf courses worldwide (Golf Digest)

They are:

In Northern Ireland: Royal Portrush Golf Club (Dunluce) and the Royal County Down.

In the Irish Republic: the "Old" club of Ballybunion (in the 1st ten world ranking), Lahinch, Portmarnock, The European Club and Waterville.

Golf high season: June, July, August.

Golf mid season: May, September, October.

Golf low season: November through to April.

Book tee times well in advance of your vacation. About 20% of Ireland golf courses have their own website on which you can make a booking. Visit the author's website to see a list of them.

Take care of how you dress. You may have difficulty at some venues if you do not take notice of the following advice regarding clothing. Wear proper shirts with sleeves and collars, golf shoes and sports socks, trousers or smart, tailored shorts. Clothes NOT TO WEAR include - denims, short shorts, trainer shoes or runners, track suits, sweaters without shirts, clothing with slogans.