Quest "Beginning of Deep Exploration" in Genshin Impact is a world quest in the Rift. To find this quest, you need to complete the quest "The Secret of Cuijue Slope", and the quest will appear automatically in your quest menu.

Walkthrough of the "Beginning of Deep Exploration" Quest

First, approach the elevator and activate the beam to watch a cutscene and learn more about the upcoming adventures. 

How to Investigate the Geo Crystal in the Rift?

To do this, head to the marked point (indicated by a white circle on your map), and simply walk through the glowing crystal. Now, run back to the NPC characters and share your discovery with them.

Now, you need to go to your Inventory and equip the Luminous Stone Conduit. There is a section called "Game Instructions" that will help you understand how to use the item.

Where to Find All Three Clues from Uncle Hai?

Now you need to find the clues, which will be marked on the map with yellow circles. 

Locations of Uncle Hai's Clues

1. To find the first one, walk along the southern bridge from the teleporter and take the page from one of the boxes;

2. Now fly down, the page will be in an easily accessible place, but first deal with the enemies;

3. The last page is in a box, and its location will also be marked on the map.

After completing the work, run back to Mu Ning to continue the journey. The girl will send you to the geological exploration camp, which you will reach following the in-game indicator (moving to the lower part of the mines). 

At one point, you will come across Mu Ning, who will assist you with upgrading your Tool. Then, head back to Zhongli, whose location is marked on your map.

Complete Zhongli's Tasks

Once you reach the girl, you will need to complete several simple tasks.

First Encounter with Geovishaps: Walkthrough

Head to the marked point on your map. Choose the nearest teleportation point and climb up using bridges, stairs, or elevators. Explore the first location. Follow the marker, defeating enemies along the way until you reach the point where you need to take a snapshot. 

Move forward until you discover the second research point. After completing everything, you will receive a reward for completing the mission and also see Eula.

Making Friends and Overcoming Bandits: Walkthrough

Well, having received the task, follow the marker to the bandit's hideout. Defeat the enemies and free the captive.

Next, go to the second camp, defeat the bandits, and listen to the dialogues.

And finally, reach the remaining area, which will be the final point in our adventure. You will come across gates that require two keys to open - on this note, the quest ends, and you receive the long-awaited reward!