Located in the Restless Shore territory, The Depths is a five-player Expedition (dungeon) in New World with a recommended player level of 45.
However, before you get stuck into the dungeon and all the mysteries it holds, you'll need to find a particular item that grants you access -- the Depths Tuning Orb.
Be mindful that unlike other MMOs, the Depths Tuning Orb is not a permanent key item. Your party only needs one to access the Expedition, and whomever begins the event will see their Orb consumed.
Follow the Main Story Quests
As with the Amrine Excavation Site, New World's main storyline will see you earn a key to the dungeon.
Once you have have reached level 40 and completed the main story quests in the area, find Yonas Alazar and accept "Answer the Call".
Follow this questline and you'll be given your first Depths Tuning Orb.
Do quests for Taslav Gurkin
Taslav Gurkin is the magistrate of the Restless Shore, and offers you another questline that takes you to The Depths.
This begins with The Greater Threat -- available once you've completed all sidequests in the area -- and encompasses two follow-up quests.
Get Additional Orbs Through Crafting
Stonemasons can also craft the Depths Tuning Orb. They'll need to have a Masonry Tier 4 station, and be at least level 55 in the profession.
You'll need the following materials:
- Corrupted Shard x10
- Starmetal Chisel x1
- Lodestone Brick x50
- Energy Core x1
These are found in Major Breach Caches, and as such require some effort to obtain.
You can get the Starmetal Chisel for 3,000 Faction Tokens and 400 Gold from your faction's rep.
Stonecutters can craft these provided they have a skill level of 100 and a Tier 4 table.
You'll need 6 Lodestones, 2 Stone Bricks, and 1 Sandpaper to craft one Lodestone Brick.
Stonecutters can craft these provided they have a skill level of 50 and a Tier 3 table.
You'll need 1 Elemental Heart and 1 Eternal Heart to craft one Energy Core.