June 17, 2023 @ 8:00 am - 5:00 pm Open Water Lake Day Stanborough Lakes, Welwyn Garden City Stanborough Lakes, Welwyn Garden City
June 25, 2023 Swimming Regional Development Programme Stanground Academy, Peterborough Stanground Academy, Peterborough
July 9, 2023 SEER Open Water Championships 2023 Whitlingham Country Park, Whitlingham Lane, Trowse, Norwich, Norfolk, NR14 8TR Whitlingham Country Park, Whitlingham Lane, Trowse, Norwich, Norfolk, NR14 8TR
July 15, 2023 @ 4:00 pm - 6:00 pm Water polo Regional Academy Training Riverside Ice and Leisure Centre, Chelmsford, Essex Riverside Ice and Leisure Centre, Chelmsford, Essex
September 16, 2023 @ 4:00 pm - 6:00 pm Water polo Regional Academy Training Riverside Ice and Leisure Centre, Chelmsford, Essex Riverside Ice and Leisure Centre, Chelmsford, Essex
September 17, 2023 @ 3:30 pm - 6:30 pm SEER Para-Swimming Meet Newmarket Leisure Centre Newmarket Leisure Centre
October 7, 2023 @ 10:00 am - October 8, 2023 @ 6:00 pm SEER Diving Club Championships Southend Leisure & Tennis Centre Southend Leisure & Tennis Centre