It's both bikable and hikable; however, at some point you will need to abandon your bike to find the cache. In the winterit's a quick bushwack to the cache but that may change in the spring.
You will pass by another geocache, Polktown Cemetery (GC6AWCQ) on the way to the trailhead for this cache. You will travel on a paved trail for the most part until you get to GZ. It's a micro so BYOP, and you will need an extraction tool to remove log. As always, no credit without your signature on the log.
Congrats to Drew136 for FTF