Royal rivalry as the Duke and Duchess of Cambridge compete in the Cambridge v Heidelberg Boat Race, channel pilot boat SUVA gets a very bright makeover and the world's first offshore foiling oceanic trimaran is launched. See this week's best pictures

The Duke and Duchess of Cambridge battle it out on the river in the Cambridge v Heidelberg Boat Race in Germany,  Channel pilot boat SUVA is painted from blue to ‘Toplac Pink’ after her owner, pilot Neil Streeter sets his team a challenge to raise £30,000 for charity, and work on a new mega yacht harbour gets underway.