On any individual picture add " /surf " to its hyperlink. For example the picture below is in "regular mode":
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And the next picture is in surf mode. Here you can view five photos in a stream at one time with the middle being larger. You will notice a "skip" hyperlink at the bottom of the far right and far left photos. When you click on the skip hyperlink, it skips to the next five photos in the photostream.
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Regular Mode http://www.flickr.com/photos/evansfam/522754523/
For a complete listing of flickr hacks and tools CLICK HERE