In Hollow Knight: Silksong, you will eventually get an ability called Cling Grip (or Wall Climb) that lets Hornet stick to walls and jump up them. It’s super helpful and opens up new places to explore. But before you get it, you will need to go through a tricky area called Shellwood, fight some enemies, and beat a boss. This guide will show you exactly how to get there step by step.
How to Unlock Wall Jump & Climb Walls

Your first goal is to enter Shellwood and reach the bench room so you can save your progress. From the starting area, hop across the platforms floating on the water. Eventually, you will come to another platform hanging by a chain. Above this, there’s a high ledge that’s tricky to reach. Instead, take the lower ledge on the left, then quickly dash and jump to grab the ledge on the right.
From here, head upward. Use your cloak’s float and dash ability to keep moving up. You will come across a few flying enemies; feel free to pogo off them to get even higher. Your goal is to reach the top-left entrance.

Once you’re at the top, go past the purple flowers. You can either fight or dodge the enemies here. Then, head down using the platforms. You will find an exit that leads to the bench room, but there’s a ledge you can’t reach yet. Drop down and keep going left. You will find a spot where you can pay to create a bench. After that, use the elevator to ride back up to the bench room.
Defeat Sister Splinter

Now it’s time to move east. From the bench room, drop down and head left until you see two paths, one goes left, and one goes up. Take the upper path. Keep climbing up as much as you can, and then head right. You will face a few weak enemies along the way, but the real challenge is the terrain. You will need to jump across white flowers, but be careful, there are thorns everywhere, so try not to fall. If you need to, you can just avoid the enemies here.
The path is mostly straightforward, with no confusing forks. Just keep climbing and moving east. Eventually, you will reach a ledge with another hanging elevator. Head into the next room and continue going east. Use the platforms you find to go upwards, then turn left into the next area. Here, you will face the Sister Splinter boss. This fight is mandatory, so make sure you’re ready. Once you beat her, the path gets much easier.
Get the Cling Grip

After the boss fight, go left and drop down. Keep moving left until you hit a wall, then go up. From here, you will mostly be heading left until you reach a room with a lake.
Go past the lake, defeat any enemies you see, and follow the path as it turns right. Now use the white flowers to jump between two big ledges, and you will reach the final room. This is where you will find the idol, and with it, you will unlock the Cling Grip, also known as Wall Climb