Cache.Advance: Code Word: Firebox
Thanks RR for the nudge. We were toying with upping the difficulty to 5 since special equipment (like a back hoe) would be needed to dig through the rubble, not to mention a permit from the city and such but in the end we decided it is really time for this one to go.
The challenge is still open for a couple more weeks so if you are playing this is now a free spot on your passport - just fill it in with the code word Firebox.