RedactedNarrative: Watercraft #1 was leaving a bay at not quite 1/2 plane, curving left. Operator #1 failed to see Watercraft #2, which was trolling. Operator #2 yelled and Operator #1 swerved further to the left. The right front bow of WC #1 struck the left front side of WC #2. Operator #2 went overboard, without a life jacket. Operator #1 stopped and threw his Type IV throwable to Operator #2. Operator #2 sustained a soft tissue injury to his left foot. It is unknown if he sought medical attention. Operator #1 admitted to not seeing WC #2. There was no damage to WC #1 and WC #2 is a total loss. Alcohol was not a factor, and life jackets were not being worn by either party.