RedactedNarrative: Jet Ski tour composed of 4 jet skis. Number 2 and 3 jet skis following too closely and did not provide proper lookout resulting in a collision between the tour guide (number 1 in line) and the number 3 jet ski.
  
  As the tour group was passing about 100-200 yards from shore and nearing the northern point of Key Haven, the tour guide, Operator2, recognized that two of the PWC were following too closely and driving a little aggressively (back and forth in a zig zag). In the brief, Operator2 advised all riders to keep a minimum of 100 yards separation.  V2 performed a sweeping right hand turn and signaled with his hand up to stop. Subject1 and Operator1 both failed to provide proper lookout.  By the time Operator2 had turned approximately 150 degrees around and let off power. Subject1 had closed the gap between himself and V2 considerably and had not recognized the signal to stop. Subject1 swerved to starboard and passed V2 on its port side just missing a collision within 10 yards.
       
     V1 was following close behind Subject1 and followed his path towards V2. The spindrift and wake spray created when Subject1 turned sharp to starboard created poor visibility for Operator1. V1 traveled through the wake created by Subject1 and struck V2 nearly head on. V2 was nearly stationary at the time, possibly drifting slightly. 
  
  V1 rode up and over V2 starting from about the centerline and veering towards the port side of V2. Operator1 failed to avoid collision. Operator2 was struck directly on the left side of his body resulting in a dislocation to his left shoulder and bruising/abrasions to his left arm and left upper torso. Operator2 was ejected off V2. 
  
  V1 rolled to the starboard ejecting Operator1 off V1. Both were wearing life jackets and were able to be helped back on their respective jet skis.
  
  Operator had 6 weeks of healing with arm in a sling.
  