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Make a donation to support the work of Royal Museums Greenwich
Event
Royal Observatory Treasures Tour
Explore some of the Royal Observatory's most treasured objects with a guided tour
Story topic
What is a blue moon and how often does it occur?
How common are blue moons in astronomical terms?
Teacher and educator training
We offer a wide variety of teacher training sessions at the National Maritime Museum and Royal Observatory Greenwich
Story topic
The Challenger Expedition
The 19th-century voyage that transformed our understanding of the ocean
World Ocean Day 2026 competition terms and conditions
Please read the terms and conditions before entering the competition
Event
Salons in the Queen's House
See the Queen’s House and its collections in a new light with this series of free lunchtime talks exploring art, architecture, history and our contemporary culture
Event
World Ocean Day
A family-friendly celebration of our ocean at the National Maritime Museum
Event
Ferreira Weekend at Cutty Sark
Join us for a weekend celebrating Portugal Day and take part in activities themed around the decades Cutty Sark spent as Ferreira after the ship was sold to a Portuguese company in 1895