Besides the sheer size of London, there are a couple of other good reasons to buy an Oyster card if you’re visiting the UK capital, with one being that taxis can be extremely expensive, especially with the current exchange rate, and worse in rush hour traffic! Fortunately, however, London has a top quality public transport system with plenty of options for getting around, including buses, the underground, trams and trains, and depending on how long you are visiting the city, a visitor’s Oyster Card is the way to go. This pay-as-you-go smart card is accepted virtually everywhere, and it discounts public transport trips by up to 50 per cent including riverboats. It’s also price capped, so you can travel as much as you like but never use more than certain amount of credit per day in central London. Other perks of the card are that you can top it up when you need to at any tube station, or at thousands of shops across London, avoiding the need to queue for tickets, which can be a huge time saver especially during peak travel times. It also comes with exclusive offers and discounts at leading London restaurants and shops. To use your Oyster card, just place it on the yellow button at the ticket gates of tube and rail stations, and at the entrance of buses. As for what value of card to get, this will depend on how many days you are in London, and whether or not you will be using the card to travel to and from the airport. If you’re travelling with kids, under 11s travel free, but children older than this will need their own travel ticket. Oyster cards can be used on the London Underground, overground and National Rail trains in London, London buses, South London trams, the Docklands Light Railway, the Thames cable car, and you can get a 10 per cent discount on Thames Clipper river boats. To buy a traveller’s Oyster card you can buy on arrival, or pre-purchase at VisitBritain’s online shop.