Operator was trolling north into the wind at 1.8 MPH with 8-12" waves, attemped to reverse course when the engine stalled.  Waves were coming into the splash well when a larger wave/wake swamped boat.  The operator grabbed a PFD and entered the water hanging onto bow of boat until a person arrived in a small fishing boat.  Due to the size of the fishing boat he was not able to get the boat operator out of the water.  A larger boat arrived on scene with an enclosed/heated cabin, he pulled the operator out of the water and took him to Lott's Bay boat launch where Fire & Rescue evaluated the operators medical condition.  They then pulled the operators boat to the launch and assisted in loading it on the trailer.
Coeur d'Alene                 