"Mono-Cliffhanger, REV-B" is a multi-stage cache located in Mono Cliffs Provincial Park on the Niagara Escarpment, near Hockley Valley. I did this cache on my mountain bike and ended up riding way further than I had to (it happens) on a hot and steamy day, draining my camelbak dry well before the end. Luckily, some lost hikers I had helped out earlier showed up when I was in dire need (still looking for their car) and they gave me a large hit of juice.
This is was a most-excellent cache to mountain bike on, or to hike. I imagine it is spectacular in the fall, so I will be returning with the whole family just to enjoy the area. As an added bonus, the drive through the Hockley Valley area is wonderful.
You can read the details of my adventure HERE.