Entrance
In the Plaza of Cathedral Ward, go through the side passage guarded by a Church Giant and down the stairs on the left. The door becomes unlockable once you defeat Vicar Amelia and examine the skull on the altar in the Grand Cathedral.
Doorman
The corpse behind the door.
Part 1
Everything up to and including the windmill.
Start
Where the path first splits, go down straight forward.
Up the slope
Across the bridge
Twin Shards (ledge)
Go left along the edge of the ravine.
Twin Shards (campfires)
Turn right after passing the campfires with several villagers and dogs, into a dark passage with the Wandering Nightmare and some Carrion Crows.
Village approach
The sloped area in front of the village gate.
In the wooden shack Large Huntsman comes out of, near the patch of yellow flowers.
Yharnamite door
On your left as you make your way up the slope.
Tonsil Stone grants access to Lecture Building, 1st floor.
"Would you stop that"
After reloading the area.
Roof of the building just after kennels.
In the house at the back.
In the house in front of the wood gate.
There is a hidden path leading to the Poison Cave under Iosefka's Clinic.
Oil pool
Elongated pool of oil, populated by Rotted Corpses and with villagers throwing Molotov Cocktails from above. Connects the village with the windmill.
You can reach here by either going past the large pit (away from the village), or by going up the slope on the left of the village gate, making your way onto the rooftops and dropping down in the middle of the pool. The latter allows you to take out the villagers throwing Molotov Cocktails, allowing you to traverse the oil pool safely.
Shortcut passage
Coming from the village, on the right near the end of the pool.
Back gate
Connecting the end of the oil pool with the village.
Village
The stretch of wood houses with a lit gate at the one end and a large, plank-covered pit at the other.
Near the pit.
In one of the wooden houses near the large pit.
In the house with the closed door next to the gate, you have to go around and enter through a hole in the back wall.
Windmill
Outside
In the house with a Large Hunstman, to the left as you approach the cannon.
Around the corner to the right of the entrance.
Rafters & roof
Enter the windmill, and go around to another doorway (without going downstairs). Drop down and then climb the ladder to reach the rafters. Crossing over the gears will lead to the facade roof.
Send to Oedon Chapel
Sending him to Oedon Chapel will result in the deaths of other NPCs there.
Kill him
Beast (+50)
Can be gotten later without a fight if sent to Iosefka's Clinic.
Drop down the cogs.
On the ground floor, guarded by the Snake Parasite.
After windmill
Exit the windmill, cross the bridge and go up the slope on the right.
Twin Shards (past the elevator)
Elevator
Connects this area with the shack in the starting area.
Shack gate
Opens a path between the starting lamp and the elevator that takes you to the second part of the woods.
Agree to join The League.
"The League exists"
After crushing 1 Vermin
To acquire Vermin, you must be online and co-op with other players while having Impurity rune equipped. The only way to gain them offline is by killing certain hunters in the DLC, but there are only 3 of those, so acquiring all 5 vermin requires two playthroughs.
Reload the area.
League Oath
Talk after crushing 5 Vermin
Kill him
Reload the area after either choice.
Part 2
Everything after exiting the windmill / coming down the shortcut elevator from the lamp.
Right side
Everything on the right side of the main cobblestone path.
Go up the slope on the right side at the start of the of the main path. You will have to jump over a small gap.
Open space with a single campfire
Up the slope
Go off the right side of the path between the crimson-lit gravestones and the burning horse carcass and follow the slope going up, guarded by a Great Snake Ball.
Clear Deep Sea (+100)
Behind the giant gravestone.
In the red-lit alcove guarded by three Snake Parasites.
Great Snake Ball crevice
Left side
On the left side of the main cobblestone path.
Twin Shards (grass)
Twin Shards (tree)
Madman's Knowledge (gravestone)
Turn left off the path at the burning horse carcass, and go up the slope.
Turn left off the path at the burning horse carcass, and jump across the narrow gap on the right side of the upward slope.
Without mask.
Either cross the log near the giant gravestone that the Maneater Boar was standing at, or drop down from where you picked up Graveguard Mask.
Firefly pond
When you reach the pool of water at a crossroads, go left to reach another, bigger pond with fireflies.
Up on the slope on the left side.
Celestial Minion ravine
Elevator
Turn right at the pond and go up the slope.
Connects to the ground floor of the Windmill.
Final stretch
When you reach the pool of water at a crossroads, go right.
Dissipating Lake (+5%)
In the water, under the giant tree roots, guarded by Rotting Corpses.
Gate
Connects the boss arena more directly to the start of this part of the woods.
When the path with stone steps forks, go right.
Clockwise Metamorphosis (+5%)
Blood Rapture (+200)