St Osyth has good bus transport links to Clacton and Colchester operated by First UK.
National Express operate a daily service from St Osyth (Kings Arms) to London Stratford (2hrs 30m) and London Victoria (3hrs 30m) which leaves around 8.15 am (later on weekends). Check their website for details and online booking.
The following changes will apply to the First UK 17 and 18 service from Clacton from 18 February 2018:
The 17 and 18 daytime service from between Clacton and Point Clear, will be replaced the No 6 bus operating every 30 minutes during Monday to Saturday daytimes and hourly on Sundays via Cloes Lane instead of Great Clacton. The Monday to Saturday evening service will continue to be provided by the 17 and 18 services.
Click on this link to see the current Clacton Bus Network Map: Clacton_on_Sea_Network_Map_WEB
For the Brightlingsea Foot Ferry Service from Point Clear to Brightlingsea and Mersea Island please click on this link: the-brightlingsea-ferry-leaflet