As Alinghi goes for The Wave, Muscat's jugular in the finale of the Extreme Sailing Series Istanbul

As the Extreme Sailing Series cats get to race up the Bosphorus

Oman Air and GAC Pindar on a charge at the Extreme Sailing Series Istanbul

Dramatic opening day at the Extreme Sailing Series Istanbul

Despite a three way collision in today's final race at the Extreme Sailing Series Cardiff

A lighter more tactical day at the Extreme Sailing Series Cardiff

Racing gets underway on Sunday at 1530BST-1430GMT

But The Wave, Muscat is close behind at the Extreme Sailing Series Cardiff

Blustery opening day on the water at the Extreme Sailing Series Cardiff

Extreme Sailing Series heads for Cardiff next week

Alinghi is star of the show at the Extreme Sailing Series in St Petersburg