The entrance to the tower is snowed in. Head north into Meadela’s Mantle Cave.

Use Ultrahand to grab a wooden board and use it to travel the underground river. Watch out for a waterfall halfway through!

At the bottom level, try to align the board so you’re underneath the tower stands. Then use Ascend to enter the tower.

If you need one, there’s also a wooden board on the bottom level, stopped by rocks.

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Upon arriving at the Sahasra Slope Skyview Tower you will be greeted by Billson who needs your help to open the door to the Tower. To do this he needs some energy. Specifically mushroom energy from the nearby caves.

As such Head to the nearby Sahasra Slope Cave via one of the two entrances. Create a path by smashing the boulders with a blunt weapon. For example by using Fuse with a nearby stone. Keep going through the cave and Ascend under the icon on your mini-map to get inside the tower. Once inside the tower, remove the two Long Sticks to open the door.

Surface

Talk to Swanson who will inform you that a flying monster has stolen a terminal component needed to repair the tower. Hide out of sight in order to lure the monster back so that you can shoot it down with an arrow.

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