Cavernous Passage - Island Wharf Upper Level (Resident Evil 4 Remake)

At the northern end of the eastern half of the passageway.

Wandering around the south west tunnels.

At the southern end of the eastern half of the passageway. Destroying it reveals an additional section of the passage.

At the end of the secret southern section of the eastern half of the passageway. You need to destroy the oil drum to access this area.