The sun doesn't even have to be shining to put the massive grounds of Castlewellan to good use. There is quite a bit of natural shelter from wind and rain. When it is sunny however this place gets very busy, especially by the lake where people don't just picnic - and indeed BBQ - but kayak, fish, walk, cycle, and bring their dogs for a swim. There are plenty of amenities on site or very nearby, such as plenty of parking, clean public bathrooms, a small cafe, and a large shop within easy walking distance. There is also a huge maze for you to try and find your way out of and that alone could take up a good hour. Entrance fee per car is £4.50 - a bargain for a full day's outing. Tip: there are some rubbish bins but not a lot; people tend to take their rubbish with them. The grounds are kept exceptionally clean. read more