A romp over Rathcroghan and environs would be cool. Bring your waterproofs to go down the cave :-)
http://www.megalithomania.com/show/site/664
http://www.megalithomania.com/show/site/1053
http://www.megalithomania.com/show/site/1052
The Royal complex comprises of many raths/forts, a couple of wedge tombs, standing stones, Oweynagat (sp?), ancient roads and barrows. I have a full survey of the area at home that I could bring along. Uisneach is a bit boring innit?