Complex sentence: Colchester Town, Hythe and Weeley are all closed on Sundays meaning that on this day a shuttle operates between Walton-on-the-Naze and Thorpe-le-Soken and a service operates between Clacton-on-Sea and London Liverpool Street.
Split into simpler sentences: Colchester Town, Hythe and Weeley are all closed on Sundays. On Sundays, a shuttle operates between Walton-on-the-Naze and Thorpe-le-Soken and a service operates between Clacton-on-Sea and London Liverpool Street.