Hard Landing is a Genshin Impact Wonders of the World Achievement that can be obtained by bringing a climbing Bathysmal Vishap down. This refers to the Bathysmal Vishap Herd, the Ascension material boss located in Enkanomiya. You need to bring either a claymore user or a Geo Damage dealer to the battle to make this Achievement a lot easier to get.
How to bring a climbing Bathysmal Vishap down in Genshin Impact
Start by heading to the Dainichi Mikoshi, where you'll find a hole in the ground that will lead you to the cave of the Bathysmal Vishap Herd. While considered a single boss, two Vishaps attack you separately. When one is keeping you busy on the ground, the other will occasionally climb a wall and deal a long-range attack that can drain your HP if you're without a shield.
Related: How to get the Electric Escape Achievement in Genshin Impact
The wall looks like it's part of the background, but it's actually a breakable object. Attack the wall using a claymore or Geo Damage to break the Vishap's footing, forcing it to fall to the ground. Doing so will automatically grant you the Hidden Achievement called Hard Landing. The Vishap will be vulnerable for a few seconds after falling, allowing you to quickly spam attacks to drain its HP.
If you missed the first wall, you don't have to restart the battle as there are a few more walls in the area. As long as you don't kill the boss too quickly, it will eventually climb another wall, and you can attempt the Achievement again.
To get another Hidden Achievement in Enkanomiya, check out our guide on How to get the Hakuen Michimitsu Amenoma in Enkanomiya — Genshin Impact Hidden Achievement here on Pro Game Guides.