RedactedNarrative: Subject ran vessel aground on Pontchartrain beach on 04/10/2020. Operator was then removed from his vessel after contacting Coast Guard for assistance. After boarding the USCG vessel, officers impairments and pursed a possible DWI. Subject consented to a breathalyzer and showed a result of 0.00g/%. Subject was returned to his vehicle that evening. Next morning vessel had drifted further inshore. Subject was cruising at the time of the incident with a small motor. Drugs and alcohol are not suspected in this incident. No PFD's were used, remote steering. Sailboat had no sails raised. Primary factor is Operator Inattention. Second factor is weather.