I'll be in Boulder in about 2 weeks for a long weekend (well, it's not really that "long"...I will have Friday afternoon free and all day Saturday. I leave Sunday morning.) It will be my first visit so I wanted to enjoy the beautiful outdoors. I wanted to jam in at least 2 outdoorsy activities if possible. I was thinking about 1/2 day hiking and 1/2 day rafting/kayaking (or biking or rock climbing) -- doing one on Friday afternoon or both in 1 day. Is it possible to do both in 1 day? Are there any clubs/groups that we could go with? Do you have any suggestions what to do?