RedactedNarrative: In the early morning hours of October 1, 2022 Operator was operating a fully loaded motorboat with three other passengers and duck hunting equipment on Rice Lake in Worth County, Ia.  As Operator let off the throttle of the mud motor, the heavily weighted bow submerged below the waterline swamping the boat and eventually capsizing.  Operator and the passengers were able to touch the bottom and swam/waded to shore and safety.  The motorboat  and equipment aboard was eventually righted and recovered later that morning.  Captain 1 located the swamped vessel and boaters at Rice Lake boat ramp and assisted in recovery of the boat and items. None of the 4 occupants were wearing a life jacket.