Axes

Chest is inside the house. The island is occupied by several opponents.

To get to the chest, you must first blow up one wall in the theater.

You will find the jar on top of the theater.

You will also need a key, which you will find on the other side of the theater, in a niche hidden behind a wooden wall.

After blowing up the wall, you'll have to destroy some crates and move a rack to reveal a door behind it. Use the key to open the door and go inside where you will find the chest.

The chest stands in the middle of the camp. To open it you will need a key that Lucian has.

Move the rack, destroy the box and take the key hidden in it. Then climb up, destroy the wooden wall and use the key to unlock the chest.

The chest is located in one of the camp buildings. It is locked. One of the soldiers outside has a key you need to open it.

To get inside the building you have to blow up the wall.

You will find the oil jar in the next building, which you can get to by swimming from the bottom through the hole in the floor.

Move the rack that covers the window, take the jar and go out through the window.

The chest is located in the room where Burgred was hiding. You will be able to get here during quest "Tilting the Balance" or later.