  Nat - We go rafting on the Rio Grand (Taos Box, Taos NM). Usually Class III or Class IV rapids, kind of like a water ride at an amusement park. One month after my C-section with Sarah, took Roy for his first trip after the Sangre de Cristo mountains had a peak snowfall. In June, you get the first run-off, great rapids but cold as ice. That year we had Class V/Class VI rapids (a very violent water ride at a possessed amusement park). Do you know what Class you're looking at? If you go with a tour company, they're always very safety conscious.
If it's your broker's personal craft, just make sure he can supply proper safety gear, life jackets, etc. It's a blast, plus you get to see some sensational scenery. GO FOR IT! (Don't forget your skanky desert hat. The sun is brutal, and I have a sneaking suspicion that we no longer have an ozone layer. ) It's 101 here today, and Roy's coming home to help me get the pool set up for the summer. I broke down a bought one of those little wading pools at the dollar store to keep the girls from melting. Speaking of which, I'd better go turn off the water. Talk later. 
