The tourist found the camera at the bottom of the river last year, DutchNews.nl reported.
While the camera was broken, the memory card was still functioning and the German man was able to look at the photos.
In one pictures, the German noticed a car with a Dutch license plate. He then contacted police in Amsterdam who were able to trace the license plate to the camera's rightful owner.
Police told the Telegraaf that the Dutch family was happy and surprised to get the pictures back.