Ten minutes of truly stunning underwater catfish filming by Mark Barrow of @BeneathBritishWaters on a day over at the historic Withy Pool. During the dive, there was some captivating and crystal clear footage of the resident wels catfish, which inhabit this record-breaking venue, one of which is over the magical 100lb mark! Get lost in the moment, watching these incredible creatures glide around the sunken tree roots and branches in what Mark has since described as, "The pinnacle in my 30 year underwater filming career"