There are two landing options built into the app to choose from when you need to land your drone.
Come above me
The Hexo+ will hover closer to you (about 5 m) and follow you if you move. You can use this option to find a flat and safe surface to move towards before selecting to land your drone.
The Hexo+ will land directly at its current GPS position (or if it was still moving, the location it was on when you originally indicated that you wanted it to land). Make sure that the ground below your drone is clear.
You can check out detailed instructions on how to land.