In Sunriver, there are over 35 miles of MUPs(Multiple Use Paths) which allow wonderful views from a myriad of locations.
You can hike or bike to this location but biking is probably the easiest way to get here. Park at the Great Hall parking lot and it's a brief walk. Or you could be playing a round of golf and hit one way out of bounds and tell your golf partners you're going to look for your ball when you really want to find a geocache.
Sit a spell and enjoy the pastoral view with Mt. Bachelor in the background. In the months of May and June the mountain is dazzling draped in the last remnants of a white winter.
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BRING A SCRIBBLE STICK OR BYOP.
Cache has a log. And yupper, I do check logs. 
FTF CONGRATS: aStrongOne