Walking is without doubt the most popular visitor activity in the Killin area.
Scotland has 284 Munros (mountains higher than 3,000 feet) and 39 of these lie within Breadalbane, including Scotland's 10th highest mountain, Ben Lawers.  All of these hills provide excellent hill walking, winter and summer.  
But walking is not only about climbing hills.  There are many low-level walks and forest paths suitable for walking at all times of year.  The Killin Paths brochure is available at various points in the village.
Two long-distance walking routes also pass nearby.

The west highland way
The Loch Lomond to Bridge of Orchy section of the West Highland Way passes through Crianlarich (14 miles / 22km west of Killin).  The train stations of Ardlui (Loch Lomond), Crianlarich, Tyndrum and Bridge of Orchy can be used to park your car, walk sections of the West Highland Way, and return by train.

The Rob Roy way
 Killin is at the heart of the Rob Roy Way which runs from Drymen, near Loch Lomond, to Pitlochry in highland Perthshire.  Kingshouse Travel organises baggage transport between the various accommodation points along the route.
National Cycle Route 7 runs through the area from Callander to Aberfeldy and includes an off-road section along the route of the former railway line between Balquidder and Killin. There is a wide network of forest tracks around Killin allowing offroad cycling amongst beautiful scenery. The Ring of Breadalbane Explorer bus service with it's bike trailer allows linear routes to be undertaken.
Bicycles can be hired at Killin Outdoor Centre & Mountain Shop.
  Canoeing & Kayaking
The lower part of the River Lochay and the head of Loch Tay provide a most beautiful wild environment for canoeing and kayaking.  Canoes and kayaks can be hired in Killin at the Killin Outdoor Centre & Mountain Shop.

For the more adventuress the rivers Awe , Orchy and Dochart are within easy reach and offer challenging routes  
A really different on-the-water experience, you can rent a dugout canoe from the Scottish Crannog Centre and paddle the east end of Loch Tay as Iron Age lake dwellers did 2,000 years ago.
Loch Tay is noted for its salmon and trout fishing and more recently for its pike fishing.
The salmon fishing season on the Tay system is the earliest to open in Scotland, on 15th January.  Grant Tigwell of Loch Tay Fish 'n' Trips provides a boat and acts as your ghillie for the day.
The west end of Loch Tay at Killin is becoming increasingly well known for pike fishing, with several pike over 30lbs being caught in the past few years.  You can fish for pike throughout the winter, the only closed month being April.
In order to fish anywhere on the River Tay system, a permit is required.  From west to east, brown trout fishing is administered by:
Crianlarich Angling Association - rivers Dochart, Connonish & Fillan; lochs Dochart & Iubhair.  Permits from The Mace Store, Crianlarich or Portnellan.
Killin Breadalbane Angling Club - rivers Dochart & Lochay; West & Central Loch Tay; lochans Na Lairige & Breachlaich.  Permits from News First, Killin.
East Loch Tay Angling Club - Central and East Loch Tay.  Permits from Kenmore Post Office.
Taymouth Angling Club - River Tay downstream from Kenmore Bridge. Permits from Kenmore Post Office.

The Killin Golf Club runs a delightful nine-hole course with one of the most scenic par-five holes in Scotland.  While the Killin golf course is a true highland course, with a number of hills and blind shots, you can also play a gently undulating moorland nine-hole course nearby at Mains of Taymouth Golf Club at Kenmore.
Killin golf course opened for play in June 1914, an inauspicious year as it turned out, but St Fillans Golf Club plays on an older nine-hole parkland course designed by St. Andrews' professional and Open Champion Willie Auchterlonie, and opened in 1903.  As in the case of the Kenmore course, it is very much a level course.