The terrain looks really nice - Canadian Shield terrain. There was some discussion on it a few weeks ago.
http://www.attackpoint.org/discussionthread.jsp/me...
Maps are just a hop and a skip from downtown Ottawa so lots to do and logistically very easy to get to.
If you are driving up for the week (Jr. camp takes place in the days before COC's I believe) also consider visiting Toronto. The TOC have an urban race on the Toronto Islands on August 14th I believe.
Big year of orienteering in Ontario.
Canadian Ski-O Champs in January
Canadian Champs in August
Golden Leaf O Festival in Hamilton in October.