Yao Guai Tunnels

Yao Guai Tunnels - Located North West of Girdershade or Smith Casey's Garage. Its hiding in a hill of rocks. Fence Door. Careful its super dark and lots of Mutated Bears in this place. There is also another door within that leads to the 'Yao Gaui Den'. There is also a bottle of Nuka-Cola Quantum in the tunnels.

Bobblehead-Sneak Location - Head to the Yao Guai Den. Its located in the Central Area on the Eastern Side of the map. On Top of a single Metal Box, can't miss it.

Perk "Animal Friend" helps a lot.