World record diver (from Portishead UK) honoured with plaque George Wookeyâs 600ft dive on 12 October 1956 set a world record. To honour this achievement George (now living in Australia), unveiled a plaque near the site at Sorfjorden, Arna in Norway where his record dive was made. He made the record dive breathing a mix of helium and oxygen, wearing a SiebeGorman helmet and a flexible dress standard diving suit. The depth record has been exceeded many times, but not using a traditional Siebegorman helmet. The unveiling ceremony tied in with the annual International Diving Seminar at which 83-year-old Mr Wookey was asked to be a guest speaker.