We're visiting London for 2 days in August, coming by train. We'll just be in Zone 1 - Covent Garden, Oxford/Regent Street, Knightsbridge, Westminster, Globe and Tate Modern. A 1-6 zone travelcard is about 12 quid for adults and 6 for DS (who is 14 - will he need proof of age?).
Are paper travelcards a pain in the neck - would we be better off getting Oyster cards instead? We're currently living overseas but have UK bank accounts so presumably Oyster cards are ok. And what about DS with Oystercards, doesn't he travel free?
It can't be that hard, but having tried and failed to buy a +Zone 1 option onto our Rail tickets (from the North of England, not from anywhere near London), I am starting to lose the will to live...