Camping
Feeling like camping? well in the deschutes national forest there are countless places that you could camp. in camp sherman (http://www.campshermansto...) you could camp along the metolius river, just stop at the camp sherman store and they can tell you all the great places to either park your rv or pitch a tent. plus if you are in to backpacking some great places you could hike to, would include south sister, plus the pacific crest trail isn't too far away either.
Fishing
There are two ways that you can fish, one being fly fishing: on the metolius which on the upper part is only fly fishing and catch and release, this river is one of the more challenging rivers in central oregon because of the forested river banks and quick moving currents. the metolius is also a guide-free river, so don't plan on hiring one to show you the secrets. another great river to fly fish is the deschutes river, you will have to venture further than sisters to find it. area attractions, like long hollow ranch (http://www.lhranch.com), are renowned for the abundant rainbow trout and large mouth bass available in their ponds and streams.
Golfing
There are a couple of places to golf in sisters. black butte ranch offers two courses. also just outside sisters heading toward redmond is the aspen lakes golf course. these course offer some central oregon's greatest views and also a few challenges as well.
Skiing
Hoodoo, (http://www.hoodoo.com) which is twenty minutes west on highway 20, offers a great place to do some downhill skiing, their slogan is "cheap, steep and cheap".