RedactedNarrative: Watercraft #1 was drifting while the occupants fished. Watercraft #2 approached WC #1 on a parallel course off the port side of WC #1. WC #2 suddenly turned hard to starboard in an attempt to cut behind WC #1. WC #2 struck the port stern area of #1 with it's bow at right angle. Life jackets were not being worn in either craft. There were no injuries. Alcohol was not a factor. There was significant damage to WC #1 and a small amount of damage to WC #2.