Bazza, thanks for the advice etc.
Regarding Bluebells, there is a good offering up in Andrews Woods behind Polhill Garden Centre. Plenty of parking in Sevenoaks Council car park (Shacklands Road).
Walk over the bridge crossing M25 and lots of B'bells there (POINT A) or for the more adventurous wanting a better bloom take the path (RED ON MAP) towards Shoreham along the ridge line (POINT B)