Located in the Windsward territory, the Amrine Excavation Site is a five-player Expedition (dungeon) in New World with a recommended player level of 25.
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 Amrine Tuning Orb.
Be mindful that unlike other MMOs, the Amrine 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
Given the Amrine Excavation Site is one of the earliest Expeditions, access is granted through the main story.
Simply follow the questline for your Azoth Staff -- once you have crafted your staff you'll be asked to stop the Corrupted, and then asked to explore the Excavation Site for a particular gem.
Do quests for William Heron
Found in the tavern in Everfall, doing side quests for William Heron will also award an Amrine Orb.
There's a line of quests starting with Ancient Contemplations, eventually offering Foreman's Ledger -- the quest that takes you into the Amrine Excavation Site.
Do quests for Laikina Pajitnova
Like William Heron, an NPC called Laikina Pajitnova will award an Amrine Tuning Orb for following her side quests.
She's found in Windsward, near Inkwel Cave. Be mindful that you may have to complete all the quests in Windsward and First Light to unlock this quest.
Once complete, she'll offer Seeing Clearly, a quest that takes you into the Amrine Excavation Site -- granting you a Tuning Orb to do so.
Get Additional Orbs Through Crafting
Stonemasons can also craft the Amrine Tuning Orb. They'll need to have a Masonry Tier 3 station, and be at least level 25 in the profession.
You'll need the following materials:
- Corrupted Silver x10
- Iron Chisel x1
- Stone Block x50
- Eternal Heart x1