Hi all: this is a call for help and advice at the highest level!
I am a complete beginner in cycling (haven't cycled since since I was about 12) and have decided to undertake a slight challenge - I want to cycle the whole of the Thames from source to Southend, some 215 miles, for charity. And I would ideally like to do it in less than 4 days!
I need a lot of help in preparing for this, namely: how much training it will take, how to train, what bike and any route planning advice! Not much I know
Any help would be greatly appreciated.
I am a complete beginner in cycling (haven't cycled since since I was about 12) and have decided to undertake a slight challenge - I want to cycle the whole of the Thames from source to Southend, some 215 miles, for charity. And I would ideally like to do it in less than 4 days!
I need a lot of help in preparing for this, namely: how much training it will take, how to train, what bike and any route planning advice! Not much I know

Any help would be greatly appreciated.