Trying out a new direction from London: South-East! An easy 40 minutes on the Thameslink from Blackfriars and a branch line I've never taken before.
There are many points of interest on this route: a ford, a viaduct, a Roman villa, a castle, and so many lavender fields. It is a gentle flat walk and taking it slow is a must. Towards the end, it crept up to maybe become one of my favourite walks. It might have been because it was a few months since I last ventured out for a stroll in the countryside. Regardless, this is a great route and recommended for all.
There are many information boards to read along the way, and plenty of benches to rest at too.