If you are considering doing this trail on a mountain bike be sure to watch the video The Awakener
Found northwest of Castlegar off of Broadwater Road, 10 km (6 mi) of challenging mountain bike trails can be shuttled via the Rialto Creek Forest Service Road. The trails descend for around 1,000 m (3,280 ft) and contain a lot of sharp turns and switchbacks and include the double-black diamond Awakener trail, Dirty Dreams, Grand Wazoo and Grandflorum. Lots of different features and stunts have been built along these trails by locals.
The good news.......You don't have to ride/hike the trail to find this cache. It is located just off Rialto Road at a trail intersection part way down the hill. You are looking for a large Pop Bottle Blank.