Royal Observatory Meridian Line & Prime Time Trail

1 Sep 2026 – 30 Nov 2026Royal Observatory Greenwich£18 adults, £9 children, under 4s free

Stand with one foot in the Eastern Hemisphere and one in the West on the Prime Meridian line in Greenwich. Kids can inspect historic telescopes and discover how sailors calculated time at sea centuries ago. It is a memorable mix of astronomy, geography, and hands-on history.

Venue

Royal Observatory Greenwich

Address

Blackheath Avenue, Greenwich, London SE10 8XJ

Age Range

3 years - 18 years

Price

£18 adults, £9 children, under 4s free

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