Thanks, Oleg! It seems like you got a pretty good answer but I'll pipe in - I don't wear hiking boots. I was wearing Adidas Trail Runners (gsg9) and had no problems. I do have to say it gets a little rough on the ankles with a pack but I found no problems with crossings and hiking in general. Just make sure they have good traction and fit well, you know, the usual. Trekking poles - YES!
