Day 7 Kent

The final day of my bus pass adventure - covering 7 counties along the south coast using my bus pass. Just one failure - not of my making, but a drivers' strike in Dorset, meaning I had to resort to a train, for just one leg of my journey.
Today I got my final bus from Folkestone to Canterbury, where I had a couple of hours to have wander and a coffee, before catching a train home, via London St Pancras, just 3.5 hours city to city, a bit of a contrast to my slow travel over the last 7 days.
Where to next?