I just had an amazing weekend in Gatineau exploring some caves and relaxing outdoors at a camp.
http://www.aventurelafleche.ca/fr/index.php
Here you can as I mentionned, explore some natural caves. They also offer extreme cave tours where you can ramp through them and discover new passages. They provide the helmets and cave lights for this as well as safety guidance and guides.
The camp also has arial obstacle courses to complete where you are attached with a clip and harness and navigate through the trees 30-100 feet in the air. You can also traverse some areas via zip-line!
Check them out, I had a fabulous time.