Royal Observatory & Prime Meridian: Early Access + Guided Tour at Royal Observatory Greenwich

Official tickets4.6

Stand on the Prime Meridian and learn the history behind Greenwich Mean Time

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Royal Observatory & Prime Meridian: Early Access + Guided Tour is a guided experience at the Royal Observatory Greenwich in London, combining early-access entry with a structured tour of the site where global timekeeping was standardised.

Visitors gain entry before general opening, allowing time at the Prime Meridian line and the historic buildings of the observatory without the usual crowds. The guided tour covers the history of Greenwich Mean Time, the science of longitude, and the instruments used to establish the meridian that divides the eastern and western hemispheres. Tickets include early-access entry and the guided tour itself.

Why you'll love it

  • Stand on the Prime Meridian Line at Greenwich
  • Early access entry before general visitors arrive
  • Guided tour covering Greenwich Mean Time history
  • Visit the Royal Observatory in Greenwich Park
  • Learn how GMT became the world's time standard

What's included

  • Early access to Royal Observatory & Prime Meridian
  • Private Prime Meridian access
  • Guided tour
  • English-speaking guide

Good to know

Age suitability
Suitable for all ages
Know before you go
  • Private Prime Meridian access

  • Guided tour

  • English-speaking guide and wheelchair_access is false and audio guide languages if there -

Visitor guidelines
  • Follow staff instructions at all times

  • Supervise children throughout your visit

  • Respect other visitors and keep noise levels appropriate

  • Check venue rules on photography and recording

Cancellation policy

These tickets cannot be cancelled or rescheduled.

Where you'll be

Royal Observatory Greenwich, Blackheath Avenue

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