RedactedNarrative: On June 5th, 2021 at approximately 5:30PM, O1 was attempting to operate a (V1) in an area with submerged objects on Hipple Lake near Farm Island by Pierre, SD in Hughes County. O1 hit what is assumed to be a large rock beneath the surface of the water with V1. V1 began to take on water. O1 was able to get the V1 back to shore. No operators were injured.