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
October 7, 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
October 22, 2023 @ 3:30 pm - 5:00 pm Water Polo Inter Regional U14 Boys Training session Woodside Leisure Centre Watford, United Kingdom
October 29, 2023 @ 3:00 pm - 5:00 pm Water Polo Inter Regional U14 Boys Training Session Bedford School Burnaby Road, Bedford
November 3, 2023 @ 6:00 pm - November 5, 2023 @ 7:00 pm SEER Short Course Championships Inspire Luton Sports Village Inspire Luton Sports Village
November 12, 2023 @ 1:00 pm - 5:00 pm SEER Masters Inter Counties Competition Bury St Edmunds Leisure Centre, IP33 3TT
November 18, 2023 - November 19, 2023 Water Polo U14 Boys Inter-Regionals Walsall Gala Swimming & Fitness Centre Tower Street, Walsall, United Kingdom
November 18, 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