The Underwater Photographer of the Year (UPY) contest is making a final call for entries. It offers categories for international entries in 5 categories, which include: Wide Angle, Macro, Wrecks, Behavior, Up & Coming. In addition, there are 3 categories for images shot in the UK: British Waters Wide Angle, Macro and Compacts. The deadline for entries is 4 January.
Full details, entry procedures and rules are available on the UPY website.