As you can see at the picture this Mercure hotel is located by the Danube, at the Pestside of the Petöfi Bridge. This means you can get a very nice view over the Gellert Hill and the Castle, if the weather is good. The hotel is very close to the National Theater, and though it has no metrostation, it is located next Europes most popular tramline, number 4&6.
The hotel has no restaurant, but they offer breakfast to their guests (you have to pay extra for this). Also be aware that the rooms with a Danube view costs more, so if you book a room, make sure to book the right one!
Hotel Mercure Budapest Duna is located in Budapest’s 9. district