Go to this area to get Kristoff's Climbing Gear.
Where to find Kristoff's climbing equipment Disney Dreamlight Valley
Disney Dreamlight Valley features characters from all your favorite movies. For example, Elsa, Anna and Kristoff from Frozen are there, in addition to Sven and Olaf.
You can even interact with them and invite them to your valley. As you talk to them more, they'll give you tasks and quests, including one that will reward you with Kristoff's climbing gear.
As you play the game, you will reach a certain mission from Mother Gothel that requires Kristoff to offer his memories of Anna to Ursula so that you can break the curse.