Giants Causeway Irelands first World Heritage Site. Over 40,000 stone columns. Wreck site of the Armada treasure ship Girona is east of the Grand Causeway, at Port-na-Spaniagh. (028) 2073 1159 Web Site Royal Portrush has a challenging championship 18-hole links course for the experienced golfer while beginners can develop their skills on the less demanding 9-hole course at Ballyreagh.      WaterWorld For fun and entertainment that’s wetter and better, enjoy a family visit to Waterworld. Northern Ireland’s No. 1 indoor water attraction boasts an unrivalled range of features in its superb adventure pool – The Pirates Cove – the centre-piece is the Jolly Roger, Waterworld’s very own pirate playground. Situated in shallow water, the Jolly Roger has 6 slides, a rope bridge and scramble net plus water cannons. Web Site