To find this cache, you must hike the bluffs trail, whose trail-head is located at the end of the Silver Lake Bog's boardwalk, the whole hike is about a mile one way. Although the hike does get slightly steep, it is very good for children. To find this cache, you must first get to the summit. Do not start bushwhacking until you reach the end of the trail, you will know you are there because you will start to see views of the lake. You may see another small trail off the the north-east, the cache is roughly 20-30 feet off that.
When I averaged the waypoint for the cache, my GPSr said it had an accuracy of about 16 feet, so be aware of that. Your geosense should be able to kick in. Think about where most caches like this are hidden. The cache is a standard green ammo box with a log book and lots of goodies.
Please be sure to hide the cache back the way you found it to the best of your ability. Happy caching!