Hello! I just arrived in London today. I have been put in a nice stay near Hyde Park. I will be working with some galleries from next week and hence will be commuting around London for the same. I had read of an ‘Oyster Card’ or a ‘Travel Card’ at the airport. Can someone tell me where to get an Oyster Card and how to avail the 2-4-1 offer on it?
Oyster card is probably the most cost effective way to get around London. You can get an Oyster card from he majority of the underground stations in London for a small charge. Alternatively you can apply online: https://oyster.tfl.gov.uk/oyster/entry.do
I hope this helps.