Bus travel around Aberdeenshire is primarily by the Stagecoach bus network. This allows you greater flexibility than the train network but at the expense of longer journey times. The Stagecoach Bus Maps and the Stagecoach routes and timetables are available here.
Formartine: Ellon to Inverurie
Read the report of a branch crawl on the #49 in Issue 62 of the Branch Magazine.
Consider a trip around Royal Deeside from Banchory, to Aboyne, Ballater and Braemar.
Fancy a trip taking-in Newtonhill, Stonehaven, Catterline and Johnshaven.
Starting at Elgin bus station you can catch buses to Forres, Lossiemouth (for Windswept brewery) and Findhorn (for the beaches).
Ellon, The Blue Toon and The Broch
Head north to Ellon, Peterheid and Fraserburgh, possibly taking in a stop at the BrewDog brewery if you are so inclined.