My family of 5 (2 adults & 19,16 & 10 yr old) will be in London arriving on 12/28, and leaving 1/7. I am having difficulty figuring out the best transportation approach for train and tube (i.e. TravelCard, Oyster Card, purchase rail passes or single tickets etc?)
We will need:
1) Transport to and from Gatwick to Kensington (I noticed confusing message about diverting trains and Gatwick Express?)
2) Use of tube for daily sightseeing
3) Transport to and from Oxford, Bath and possibly one other southern England City.