A beautiful walk best taken over four to five days. Travel light and don't expect to re supply. The traditional route starts at Blairgowrie , a town with lots of options for accommodation and supply. Next up is Bridge of Cally ( where we started. ) No official parking but the hotel is happy to let you park there. No village shop so you're going to be eating at your hotel. Kirkmicheal next, a few hotels ( we stayed at the Strathardle Inn ) and a village shop. Next day over to Spittal of Glenshee. Not much there , no shop or restaurant so you'll be cooking food you carried or eating at the Glenshee Hotel. We were warned off it but the food we had was fine. We stayed at the Gulabin Lodge ( sort of a hostel ). Small room but comfortable. Tey had a great kitchen and two nice lounges. No shop as precviously mentioned so youll have to cook what you carried in. Next day a long walk to Glenisla. One small hotel and no shop. We had a local B+ B pick us up (Purgavie ) and drop us off. At this point after 30 miles of walking through glorious Scottish country side my wife had foot failure so we were dropped at Alyth , a small town with a few hotels, B+B and shops. A days rest did not help so next at a taxi back to Bridge of Cally to get the car and so home.
A couple of pointers. The official brochure is badly out of date, shops closed , B+B s closed etc. on the plus side I found out pretty much every hotel and B+ B will do some form of shuttle for you for free. So I suggest asking and then planning on staying in a hotel for two or three nights using the shuttle and then moving to the next one for the next few legs. That way you'll only have to carry your pack on two days. Call the hotels and B+B and ask them about shuttles. Read up on midge season. It's worth avoiding the little biting insects if you can time your trip right. August worked for us but it can be midge ridden. Www.midgeforecast.co.uk can help.
The path is well marked but do take the time to look for way markers when in doubt. They are there, you might not just see them at first if they are at a corner. Take a good map. Most of the hiking is on reasonable paths and tracks but some sections will be boggy in wet weather. We were lucky it was very dry but one could see where the mud had been.
As always in Scotland, the weather can change at a moments notice so never travel without your space blanket, some food, water proofs etc. cell phone reception is very spotty. Even on a good day take a day pack with your emergency kit and some food and cooking kit. Besides it makes lunch nicer with a hot meal and tea.
My wife was concerned that the 12 and 14 mile days might be too long but if it hadn't been for the blisters she would have been fine. It's just not that strenuous. In short. Make sure your boots and sock are good, have good water proofs, call and book your hotels etc in advance and ask about shuttles. It's a great easy walk through some of the finest rural scenery in Scotland. It's not the wild moors and uplands , mostly farmed valleys but beautiful nonetheless.