Observatory Unlocked at the Royal Observatory
EVENT

Observatory Unlocked at the Royal Observatory

Event Details

Dates

Sat 10 – Sun 11 Oct '26

Sat 17 – Sun 18 Oct '26

Sat 24 – Sun 25 Oct '26

Sat 31 Oct – Sun 1 Nov '26

About this event

Get hands-on with a telescope, explore the surface of the Moon, try your hand at using a sextant and see the invisible at the Royal Observatory Greenwich with our weekend interactive Observatory Unlocked sessions.

What to expect:

  • Weekends 10-11 and 17-18 October, typically 11am-2.30pm
  • Half-term Moon special: 24-25 October 10.15am-1.30pm, 31 October-1 November 1.45-4.30pm
  • Admire the Mirror Moon sculpture and make your own crater
  • Drop in any time to sessions that are running
  • Included with entry to the Royal Observatory
  • The Observatory closes in November for a major refurbishment, so half term is the last chance to visit this year

More Details

Booking

Walk-in

Arrival

Anytime

Parent Must Stay

Yes, required

Pricing

Royal Observatory Greenwich

Explore the Prime Meridian and discover world-class astronomy exhibits at this iconic Greenwich landmark with interactive galleries for all ages.

What this place offers

ToiletsBaby changingFoodPushchair friendlyAccessible🐕 Dog-friendly

Last updated: 9 Oct 2026

Frequently asked questions about Observatory Unlocked at the Royal Observatory

How much does Observatory Unlocked at the Royal Observatory cost?

For ticket prices for Observatory Unlocked at the Royal Observatory, see the official event page or booking link.

When does Observatory Unlocked at the Royal Observatory take place?

Observatory Unlocked at the Royal Observatory runs from Saturday, 10 October 2026 to Sunday, 1 November 2026.

Where is Observatory Unlocked at the Royal Observatory held?

Observatory Unlocked at the Royal Observatory is held at Royal Observatory Greenwich in London.

Do I need to book in advance for Observatory Unlocked at the Royal Observatory?

Yes, advance booking is required for Observatory Unlocked at the Royal Observatory — book via the official event page.

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