The London Dungeon: County Hall, Westminster Bridge Road, London SE1 7PB.
We are 4-5 minutes walk from Waterloo Tube station, which is on the Northern, Jubilee and Bakerloo Lines. Waterloo mainline station is also just 4-5 minutes walk.
By Bus or River
Waterloo is well served by buses and there even is a river service to the London Eye pier. Best check the Transport for London website. Bus or River.