We (my husband, adult daughter and I) will be staying one week in London at the end of July. When we arrive at Heathrow, each of us should purchase a 7 day Oyster card (pay as you go) and put money on it.
Later that day, my husband and I plan to purchase for each of us a 7 day travel card at a train station (not a tube station) for zones 1 and 2. We should each bring a passport sized photo with us. We attach it to the travel card and then he and I can use 2 for 1 passes at various sights which allow 2for1 (some of which, like the Tower of London do not allow 2for1 in the summer). We attach? these travel passes to the Oyster card and can use them for train/tube/buses in zones 1 and 2, and also for buses outside zones 1 and 2? (Wasn't sure about that one.)
If we travel outside zones 1 and 2, (i.e. Hampton Court Palace) we can use the Oyster card as long as we put enough money on it, and it will deduct the cost of the train or ferry. This works for any travel outside of zones 1 and 2 in London.
Is my understanding of this correct? Also, do we scan the Oyster card or the travel card--I am not clear about this.
Thank you so much.