Greater Anglia operates a train from Clacton-on-Sea to The O2 Arena hourly. Tickets cost $30 - $45 and the journey takes 1 h 18 min.
How to get from Clacton-on-Sea to The O2 Arena
From Clacton-on-Sea train to Stratford Underground Station, Tube to North Greenwich Underground Station, then walk to The O2 Arena. 1 h 31 min £28. From Clacton-on-Sea drive to The O2 Arena. 1 h 20 min £13.