TheNational Diving and Activity Centre (NDAC), was a facility located at a large floodedquarry atTidenham,Gloucestershire, England, near to the border with Wales atChepstow. It was previously Dayhouse Quarry, a source of limestone, which was flooded in 1996. The diving centre opened in 2003,[1] and closed in 2022.[2]
An inlandscuba diving site, it was popular with technical and free divers due to the depths of up to 80 metres (260 ft),[3] with underwater attractions in depths ranging from 6 metres (20 ft) to 76 metres (249 ft).PADI andIANTD training was provided on site, and many localBSAC andSAA clubs used the site for training.[4] All freediving at the NDAC was undertaken through SaltFree Divers.[5]
The site also included an inflatable assault course,[clarification needed] bungee jumps, paddle boarding and a 700 m (2,300 ft) longzip wire.[2]
On 18 February 2022, the NDAC issued a statement via social media saying that the site was permanently closed.[6] The following month it was reported that the site had been purchased by a company seeking to develop equipment to enable people to live deep under water.[7] In September 2023 it was revealed that the site had been acquired by The DEEP Institute[8] and renamed DEEP Campus.[9]
In 2017, the NDAC was a location for theNetflixfolk horror filmApostle starringMichael Sheen andDan Stevens.[10]
51°39′20″N2°38′50″W / 51.65556°N 2.64722°W /51.65556; -2.64722
