<p>Enter our competition and be one of five lucky winners to join AP Editor Damien Demolder for a high-speed ride on board a RIB on the River Thames.</p><p>Amateur Photographer and Pentax have teamed up to offer five readers the chance to spend a day in London shooting with the weatherproof and splashproof Pentax K-5 II, while getting help from AP Editor and photographic tutor Damien Demolder.</p><p>The day will take place on 24 October 2013.</p><p>The five lucky winners will be taken out for a high-speed ride on board a RIB and each given a Pentax K-5 II for the day to use. They will be able to photograph the heart of London, including Parliament and Docklands close up, as well as running past the O2 Arena at Greenwich and through the Thames Barrier to the Olympic Games site and beyond.</p><p><a href="http://www.amateurphotographer.co.uk/photo-announcements/540100/win-a-pentax-k-5-ii-plus-a-day-on-board-a-rib-on-the-river-thames">Keep reading...</a></p>