Alex Mustard :
www.amustard.com
A constant source of inspiration to underwater photographers worldwide.
British Society of Underwater Photographers :
www.bsoup.org
Formed in 1967, BSoUP is the largest underwater photographic society in Britain.
Sea-Changers :
www.sea-changers.org.uk
Sea-Changers is a UK marine conservation charity which works to address threats to the marine environment.