Boise & Idaho info wanted

[pbowman]

wife and i are planning a trip to idaho this summer, with specific plans to visit boise. we would primarily like some suggestions on when to go in order to maximize our enjoyment of kayaking and mountain biking (equal preference). if we hit the end of run off, will mountain biking trails start to dry out and be accessible, or do the trails stay wet until late summer? would a june trip accommodate both, or later into july? we are not trying to hit "peak" run off, but just want to be there when there is still enough water to boat.

we plan to take an extended vacation, around 2-3 weeks, and stay primarily in the boise area and then venture out from there. what are the local rivers within a half day drive, so I can do some more detailed research. no creeking, just CL III & IV so we can boat together. any "must do" recommendations for either the boat or the bike?

thanks in advance.