asking the forum if this is OK idea or too ambitious -
day trip from London to see Dover Castle (both WW2 tours) and then White Cliff walk... grab takeaway or quick lunch then train/bus to Canterbury to see high street, Cathedral and evening song - real dinner in Canterbury or quick one to eat on train back to London - is this too much for one day trip from London - worried that the White Cliff walk will be cut short and want to have a good experience there