The operator was returning back to port,  keeping a visual lookout and using the GPS to navigate. The  operator became distracted by the GPS and had misjudged how far into the channel the vessel had travelled. When the operator looked up, the vessel was heading straight for marker #7. The operator attempted to avoid the marker. The vessel struck a rock and skidded to a stop on top of the rock. The operator failed the field sobriety test. The  toxicology report indicates that the operator's BAC was 0.10. The operator suffered minor facial injuries, including a broken tooth as a result of the collision.
Branford