This is a non profit community based company so you can already feel good about giving something directly to local people. 

Creggan Country Park offers a full range of watersports and other land based activities and they specifically welcome henparties. Bring some old clothes and be prepared to get wet and dirty - go sailing, windsurfing, canoeing or kayaking. 

If you prefer keeping your feet on land, you can go orienteering or take part in a treasure hunt. 
It's located not far from Derry and there is a bus from Derry directly. 

Contact us for more information and don't forget to mention henpartyUK !!