The cache is not at the posted coordinates. You have to do the Adventure Lab cache to find the correct cords. I found this nice little spot for the Bonus for my Bend River Parks & Oregon Trivia Adventure Lab Cache while walking the Bend River Trail. It is in a nice little quiet area but still watch out for muggles. They are working on the trail now and are supposed to be done this fall, but you can still walk from Drake park to Pioneer park quite easily. They are also working on Pacific park which is close to the given cords of this Bonus cache and it will have a parking area for one of the trailheads to the River Trail. This is a log only container and it started out with a pencil but as alway bring a writing stick just in case and please put it back as found for the next cacher to find.
To get the cords for this bonus, take the number from each of the points in the Adventure Lab Cache then plug them into this:
N44 03.BCE W121 18.BAD