How to unlock Sahasra Slope Tower, get Billson’s Mushrooms in Zelda: Tears of the Kingdom

The Legend of Zelda: Tears of the Kingdom’s Sahasra Slope Skyview Tower starts as a hunt for mushrooms and quickly evolves into a much more convoluted way of activating the device to clear the map surrounding the area.

Figuring out all of the Skyview Tower locations is merely the first step to unlocking Hyrule’s map in its entirety. Below you’ll find a walkthrough to solve the Hyrule Field Skyview Tower in Zelda: Tears of the Kingdom.

How to unlock the Sahasra Slope Skyview Tower

The Sahasra Slope Skyview Tower can be found north of West Necluda at the coordinates (1344, -1170, 0166), southeast of Hyrule Field, and close to Kakariko Village.

Image: Nintendo EPD/Nintendo via Polygon

It’s easy enough to get to this tower, but... the door is locked. Oh well! You’ll meet a character named Billson, who’s there to repair to tower. Unfortunately, they can’t get inside, and they hint that there must be something preventing the doors from sliding to each side. Billson also asks for some “tasty mushrooms” from the nearby caves. (Reader, this prompt is super misleading — you’ll see why in a second.)

Image: Nintendo EPD/Nintendo via Polygon

How to get Billson’s mushrooms

Thankfully, the cave is right underneath the tower itself. There are two possible entrances, and right off the bat, you’ll need to make your way through some stone walls. You can either Fuse a weapon with a boulder nearby, or use explosives like bomb flowers — it’s up to you.

Here’s the gist. Essentially, the cave has two main paths, which are led by each of the entrances. They both converge into a room with a few Horriblins, who can be tough to fight against in groups.

You can completely avoid that encounter if you want. The path you want to take is in the center of the enemies. If you take the entrance to the left of the cave, you’ll hear the Horriblins to your left — and if you break the walls a bit, you could alert them to your presence. The same goes for the other entrance, as you’re likely to hear them on your right.

The key here is to get in between both paths, where you’ll find a third one. Just keep on smashing rocks until it’s open to you.

Image: Nintendo EPD/Nintendo via Polygon

Then, head inside that room and use Ascend on the helpfully distinct rock surface on the ceiling, which is where the tower is placed. This is right before the entrance to the final room with a Bubbulfrog inside, which is blocked by a boulder and two rocks on each side of it.

Image: Nintendo EPD/Nintendo via Polygon

Once you’re inside the tower, you won’t be able to activate the device just yet. First, you need to take off the long sticks that are on each side of the door, which are blocking the door from sliding. Once that’s settled, talk to Billson, and who will proceed to (finally!) repair the tower. Go ahead and activate it afterward, and you’ll be all set.

If you want to fully explore the cave, bomb flowers will help you deal with the Horriblins, but you can also keep your distance and use Recall once they throw a boulder at you. Make sure to have the ability already selected, and keep the finger at the ready to press L, as the attack is quite fast.

Doing this will stun the Horriblin, which will fall to the ground, so you can whack them directly. You can also play with resistances and weaknesses here, if you have the right items — the light blue one is weak to fire, and the orange one is weak to frost.

Image: Nintendo EPD/Nintendo via Polygon

Take all of them down, make sure to loot as always (one of the mine ores dropped a diamond for me here!), then prepare to do the aforementioned spelunking for that third path.

Once there, remove the boulder covering the door using Ultrahand, and hop to the other end to take down the Bubbulfrog and finish the cave. That’s all for Sahasra Slope Skyview Tower!