Instruct: Classify Amazon reviews into positive or negative sentiment
Query: good guide to walk, but beware

This is an indispensible guide to the walk. You won't be able to do the walk without it because there are very few signposts along the Rob Roy Way. But beware of two things: you will have a hard time doing this walk with this guidebook from the north to south direction. It's geared for the south to north direction, and unless you have other sources you'll lose the trail if you're walking it the N-S way. ALSO, this guidebook does NOT include the optional arm to Amulree that is discussed on the website. Print out the instructions from the website before you go. You can (and should)also get a contour map of that optional arm of the hike from a tourist or outdoor store (I believe it's #387). You will NOT be able to find the Amulree trail without a good map, and this guidebook doesn't include it. You will also have a hard time finding the Amulree trail with just a contour map, so print out the website instructions before you leave! Found this out the hard way.