Prince William and Kate Middleton, the Duke and Duchess of Cambridge, have joined a prayer service with 200 sailors Sunday morning.

(Reuters/Phil Noble)Britain's Prince William and his wife Catherine, Duchess of Cambridge, arrive at a prayer service on board the HMCS Montreal in Quebec City July 3, 2011. Prince William and his wife are on a royal tour from June 30 to July 8.

(Reuters/Christinne Muschi)Britain's Prince William and his wife Catherine, Duchess of Cambridge, arrive at a prayer service on board the HMCS Montreal in Quebec City July 3, 2011. Prince William and his wife Catherine are on a royal tour from June 30 to July 8.

(Reuters/Christinne Muschi)Britain's Prince William and his wife Catherine, Duchess of Cambridge, take part in a prayer service on board the HMCS Montreal in Quebec City July 3, 2011. Prince William and his wife Catherine are on a royal tour from June 30 to July 8.

(Reuters/Phil Noble)Catherine, Duchess of Cambridge, greets members of the band following a prayer service on board the HMCS Montreal in Quebec City July 3, 2011. Prince William and his wife Catherine are on a royal tour from June 30 to July 8.

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