RedactedNarrative: Operator was operating boat and traveling upstream returning to public ramp. Operator passed r85 and moved to right side of channel after striking some minor debris. Operator lowered helmet facemask after running into spider webs causing his glasses to fog. Operator did not see channel marker r87. Operator's grandson yelled for him to turn left just prior to impact with the shore. All three occupants remained in the boat. There were no injuries.