Schwalefeld is also a slate mine at Sauerland, Germany.
In general, only certifications from IANTD, GUE, NSS-CDS and NACD are accepted. Owner of other certifications have to book a check-dive.
Rebreather divers need to have a CCR cave certificate, and the certificate for the unit used.
![](https://minediving.de/wp-content/uploads/2019/12/SchwalefeldTec.png)
Booking at scapehander.de