London Underground Tickets/Passes?

It depends on what zones you’ll be frequently traveling between. Look on a map of the places you plan to visit, and then see where they are positioned within the tube zones. Most people only use a couple zones, so your best bet is just to go to a ticketing window and tell them you want a pass good for a week good for the zones you’ll use. It will ultimately save you money rather than risk buying a pass for all zones, or fill an Oyster card with money you may not use up.

It’s not difficult to figure out once you’re there. I think they’ve got the best system for mass transit. Much eaiser than NYC. I’d buy tickets as you go.

I was there for a week last summer and found the Oyster card very convenient and affordable.