This is a guide for the “Castle Access” Standard Quest in Xenoblade Chronicles 3.
How to Start the “Castle Access” Quest
You will receive this quest during Chapter 5, as part of the main story. More precisely, you’ll get it after your tour of the City and discussing your next mission with Monica inside the War Room.
How to Complete the “Castle Access” Quest
Step 1. Speak to Samon at Sentridge Harbor
First, return to Fuller Elevator Landing at the Great Sword’s Base. We suggest fast-traveling there. Upon arrival, you should notice the nearby locked door to the north is now open; go on through. Beyond, you’ll be at Sentridge Harbor. Head for the north end of the harbor to meet up with Samon.
Step 2. Speak to Timna in the City
Next, head for the south-east corner of the City, directly south from the Remembrance Stones. Head up the stairs to find Timna, your next contact. Also, listen in to the Fourtune Clover gossip before the stairs (if you didn’t do so already).
Step 3. Speak to Miyori at the Material Storage Warehouse
Your next destination is the Material Storage Warehouse at the south-west corner of the Great Sword’s Hilt, on the upper level. If you visited earlier, you can fast-travel there. Otherwise, fast-travel to Dolgan Cliff, then head south before the Airway Corridor, climb up all the ladders, then travel anti-clockwise. There, you’ll meet Miyori.
When you’re waiting outside, we suggest staying put. Very soon, a group of foes will arrive: five Level 42 Planaa Ansel. Successfully clip their wings and you’ll receive the promised goods: 300 Ship Ether Cylinders.
Step 4. Report back to Samon at Sentridge Harbor
Now get yourself to Sentridge Harbor Control, which is the room along the west side of the harbor. Inside, chat to Samon to deliver the goods. This will end the quest, giving you access to the sea-faring vessel, the Boundary.