There are outdoor TRX classes that take place on the harbour road in Dun Loaoghaire. Rob Smyth from LetsTrain.ie runs the classes. Its a great addition to your training, he offers different types of classes like TRX burn, core and circuit. I have been down working for him and instructing classes over the past couple of weeks and there is a great atmosphere there. You should try it out, only 10euro a class and I think there is a special offer on at the moment. Check out the website. Highly recommend it.