Yao Guai Tunnels

The Yao Guai Tunnels are located due west of the Charnel House, and northwest of Smith Casey's Garage. The entrance is a chain-link fence door in a rocky outcrop. As the name suggests, the caves are inhabited by a large number of Yao Guai.

Notable Loot

 * There is a Pre-War Book on the picnic table just as you enter the Tunnels, and a random weapon behind a pile of sandbags next to the picnic table, in the cabinet.
 * There is a bottle of Nuka-Cola Quantum sitting on a picnic table on the way to get the Bobblehead - Sneak (see below).
 * Floating in the pool of water next to the bobblehead is a settler's corpse containing the Yao Guai Den Note about setting up camp in the tunnels.
 * In the southern section of the Yao Guai Tunnels (only accessible as you exit from the "Yao Guai Den") there is a Grognak the Barbarian book along with a dead Raider on a ledge directly in front of the entrance to the "Yao Guai Den."
 * A stash of mines and ammo on the big bookshelf in the first main chamber after the entrance tunnel (not the den, just before the intersection).

Bobblehead Location
To find the Bobblehead - Sneak, you will enter facing east, continue east until you have the choice go north or south - go north and follow around this path, now going south, to the den. Once inside the Den, walk straight ahead to the central pillar, and then head to the left. Immediately look for the natural stone ramp that leads along the eastern edge of the cavern, overlooking a crescent-shaped pool of water. At the base of the ramp is a Metal Box with the bobblehead standing on top of it.

Watch out for bugs: you can get stuck in between rocks on the edges of the cave so save your game before exploring the edges.

Enclave Outpost
After the quest "Waters of Life" you will find an Enclave camp directly east of this position. They usually are all dead, with clear signs of a struggle all around. They may have been studying the Yao Guai for ways to control them similar to the Enclave Deathclaws, or may have simply not known about the Yao Guai den when they set up the outpost. Also, a Vertibird has been known to land nearby (or other mini-encounter involving Enclave soldier(s) happen).

If you are lucky, you may come out of the Yao Guai tunnel to find a group of Enclave fighting 3 or 4 brotherhood outcasts. If you kill them all, you can get a fair amount of power armor as well as their weapons.

YouTube Videos
Gameplay video & Sneak Bobblehead Location EFCDr7QWV98 SfR-FAKkwVg