In this week's roundup of the world's best boating photos , we have a Spanish ship held hostage, two very determined school children defy the Philippine floods, and the Environment Agency sets to work cleaning up a contaminated river.

Head to our gallery to see all the photos, and check out previous weeks' best boating photos .

While you're at it, have a look at this week's spot the difference challenge . There are 10 discrepancies to find.

Motor Boats Monthly, 2 October 2009