I spent two and a half years living in Gibraltar.
I abseiled down the Rock (twice) but never got to visit the tunnels.
WikiBacktoFront: Tunnels of Gibraltar
Mmmn. I wonder! More to this than we are being told?
I lived in a second floor flat at Europa Point. A hop,skip from the lighthouse.

From one window – North Africa. From the other – Southern Spain.
Some days the Levante would hang over us. An eerie, surreal feeling.

For such an Historically Strategic and Important place, the history seems a touch BS.
Just saying!