Navigate the riverbanks that linked London to the world on this affordable self-guided walking tour.• See the 450 year-old pub, The Grapes, that houses the staff that actor Sir Ian McKellan, who is also part-owner of the pub, used when he played Gandalf in the Lord of the Rings trilogy• Hear from producer Steve Matthews who’s been sharing his passion for London’s history through guided tours since 2010• Do it all in 90 minutes or linger at stops along the way with complete control over when you start and finish• Get unlimited use before and after your booking date• Use the virtual tour option at homeOnce you’ve booked, you’ll receive a ticket with instructions and a unique code listed under “Before You Go”. Then simply install the VoiceMap app and enter your code.The app displays directions to the starting point, and when you’re in the right place, just pop in your headphones and tap start. VoiceMap has automatic GPS playback, with turn-by-turn directions and works offline.