RedactedNarrative: On 5/30/2019, Vessel 1 (V1), departed Springbrook Marina in Seneca, Il at approximately 2:30 PM. Operator’s father was following him in a vessel from Springbrook Marina. Both vessels were being ferried to the Chicago Yacht Club for a boat show. 
  
  The vessels arrived on Lake Michigan at approximately  12:30 AM via the O''Brien Lock and Calumet River. V1 operator stated weather conditions were perfect, less than 6” waves and minimal to no wind. Once on Lake Michigan V1 operator engaged the autopilot and charted a course to a waypoint approximately 1 mile south of the mouth of Burnham Harbor. V1 was cruising at 20 knots (23 mph). 
  
  At approximately 1:00 AM, V1 operator felt a strong jolt as V1 stuck the seawall on the eastside of Northerly Island, approximately 1800'' north of the southern tip of the island. V1 operator was  controlling the vessel from the pilot house.
  
  V1 operator cut the wheel, put the engines in neutral, and began to assess the damage. The bilge alarms began to sound and the operator looking into the engine room and saw water entering at a quick rate. This was within 2-3 minutes of the collision. 
  
  V1 operator radioed his father and instructed him to contact Tow Boat US. He then turned and motored V1 south at 8-9 knots towards the mouth of Burnham Harbor. Once V1 was adjacent to McCormick Place the port side engine began to lose power. Operator then shut off both engines and turned all battery power off. 
  
  V1 was then put into tow by the trailing vessel. V1 was towed to the seawall just south of the boat launch at Burnham Harbor. At approximately 1:30 PM, Tow Boat US arrived and the boat was secured to the seawall as it began to sink. Shortly after, V1 came to rest on the bottom. Tow Boat US put absorbent booms out to mitigate any leaking chemicals.
  
  V1 operator stated Tow Boat US contacted the USCG and CPD Marine Unit. Tow Boat US was assembling a team to move the boat later in the morning. V1 operator then departed Burnham Harbor in the second vessel, delivering it to the Chicago Yacht Club. While in transit V1 operator was contacted via phone by both PO \ with CPD Marine Unit and Petty Officer \ with USCG. V1 operator gave a verbal statement to both explaining what happened. V1 operator admitted to falling asleep while operating the vessel. PO told V1 operator that he did not need to return to Burnham Harbor.
  