On the SF Boise, you come in via the dam, fishing and access good for the next 4 to 5 miles, but it is primarily a drift boat stream...even though many wade. Just pick your spot anywhere along the road. Pink Alberts should be hatching about now....check with local shops.
Again, Payette looks like it should fish great....usually doesn't, smaller (8" to 10") fish. The small alpine lakes are usually 1 ot 2 mile walks. Each lake is stocked via chopper with either cuts, brooks or rainbows. Flying red ant hatch is great on these lakes.