Definitely not caving, but they were a limestone quarry & closed to canal boats (except for our escort) on an organised tour.
Returning through Netherton Tunnel, which is normally off-limits to canoes.
You can take a boat ride through them: http://dudleycanaltrust.org.uk/history/tunnels-mines-and-caverns/
Mike
![23172419_10215092037919106_8161869230445179611_n.jpg](https://scontent.fbrs1-1.fna.fbcdn.net/v/t1.0-9/23172419_10215092037919106_8161869230445179611_n.jpg?oh=d3c8c8cefd264e2804057c8ae3aea902&oe=5AA5347B)
![23031325_10215092039319141_5429060012435973241_n.jpg](https://scontent.fbrs1-1.fna.fbcdn.net/v/t1.0-9/23031325_10215092039319141_5429060012435973241_n.jpg?oh=bb3f1cca633cea5da73bb40e29cc194d&oe=5AAEF200)
![23031410_10215092039639149_1356092326124235165_n.jpg](https://scontent.fbrs1-1.fna.fbcdn.net/v/t1.0-9/23031410_10215092039639149_1356092326124235165_n.jpg?oh=53070bbf3a55bb451fe5c8f6c5116b63&oe=5A6C3213)
Returning through Netherton Tunnel, which is normally off-limits to canoes.
![23167778_10215092033398993_5627304429130240900_n.jpg](https://scontent.fbrs1-1.fna.fbcdn.net/v/t1.0-9/23167778_10215092033398993_5627304429130240900_n.jpg?oh=8ac8a2d452c82096d8ed5f42b5b17f8c&oe=5AA2DC8B)
You can take a boat ride through them: http://dudleycanaltrust.org.uk/history/tunnels-mines-and-caverns/
Mike