A GSG visit to former Navy underground fuel oil tanks near Invergordon.

Goon approaches the west portal
12:32 PM

Entrance gate
12:33 PM

Inside the west tunnel
12:35 PM

Stalactite
12:35 PM

East portal
12:57 PM

Entering the first storage cell.
1:01 PM

Heating pipes at the sump
1:07 PM

More cavers approach
1:14 PM

Goon attempts the cavers' exit
1:39 PM

Carol
1:40 PM

Patrick and Edith
1:40 PM

Exiting on the trolley
1:50 PM

Goon and the Cromarty Firth
2:05 PM

Electricians' graffiti
2:11 PM