I shed multiple tear from multiple orifices today knowing that I won't be joining your strapping young men in this weekends adventure. Being the elder of the group, i thought I would leave you boys with some wiseship.

Camping.
http://www2.gsu.edu/~wwwrec/touch/camping/dos_donts.html

Whitewater Rafting.
no paddling, let the river take you where it may.

That is all.

You boys enjoy now.