I'd think it'd be a pretty safe trip as well. You've got an easy stretch of river, a place that rents boats and the likelihood of seeing bighorn sheep, eagles, otter, kingfisher, deer, etc. We saw all of the above when teaching my friend's step son to row on the same stretch last week. He picked it up pretty well and we survived without any broken rod tips. You don't have to be a space shuttle pilot to navigate that portion of the river at present flows, so don't be too intimidated. It'd be different if your guests were expecting you to handle the boat while they fished. I'd call Reds and make sure they're comfortable renting a boat to someone with little experience. If they are, they'll go through the basics with you and probably give you a higher profile boat. Just use common sense and don't be too proud to wear PFDs. Watch your downstream oar in the shallows if you're turned sideways so you don't catch a rock and lose it. I'm assuming your guests are people you're not too worried about impressing. You'll undoubtedly experience some minor glitches. Have fun if you go.