The upside of this error was that I had to walk through some woodland which was absolutely carpeted with bluebells. Eventually I got back on track and found my way down the bottom of the valley to the Lullingstone Visitor Centre.
I treated myself to an extortionately priced Bakewell tart and cup of tea before setting off again along the river bank back towards Eynsford. The path leads past the Tudor gate house to Lullingstone Castle, ancestral home of the Hart-Dykes.
Continuing on I came to the site of the Lullingstone Roman Villa which is open to the public.
I took another country lane passing under the towering Eynsford viaduct that I'd seen from above earlier in the day and headed back into the village.
UPDATE - for Part 2 of My Darent Valley Walk please see here