Where Are the Wells?
In this Zelda: Tears of the Kingdom side quest guide, we'll give you the complete tutorial for the side quest: An Uninvited Guest.
This mission is triggered when you talk to Ami, located at the Wetlands Stable, located between Necluda Wetlands and Hyrule Field. It is southeast from the Lookout Standing. Ami is near the horses.
When you talk to Ami, he'll show you the 2 wells he's built. The first is near you, the second a little further away. To complete the mission, all you have to do is defeat the enemies near the well mentioned by Ami.
To do this, go down the nearby well. Collect resources as you go, and you can also chat with Fera to unlock the Where Are the Wells? side quest. Fera will give you 10 Rupees for each well you explore.
Continue on to the bottom of the cave, where you can break the stones on the ceiling to unlock the hole. Then use Ascend's ability to climb up. You'll find yourself in front of the well further on.
Attack the enemies near the well. Once all the enemies have been defeated, go and talk to Ami. As a reward, you'll receive two Pony Points. This concludes the side quest: An Uninvited Guest.