• 10.00am - 5.30pm
  • FREE
  • Chelsea, London
National Army Museum
  • 10.00am - 5.30pm
  • FREE
  • Chelsea, London

General Hilarity party


2-hour package for 20 children*

Book a private birthday party for your little one in The Mess and enjoy Play Base, our family play area for children aged 1-8.

Package includes:

  • Exclusive use of Play Base for the first hour of your party
  • Use of an adjacent private party room, The Mess, for 1-hour party
  • 20 party food packs, freshly made on site
  • 20 party bags
  • Gift for the birthday boy or girl
  • Custom invitations to print or email


  • Morning: 11.30am to 1.30pm (Friday to Sunday)
  • Afternoon: 2.30pm to 4.30pm (Friday to Sunday)

Please note that due to the high volume of visitors in the Museum, availability will be limited during school and public holidays.


Once your party booking is confirmed, we will send you a link to the custom invitation and to our online Party Builder. Use this tool to shop for extras and make the occasion that little bit more special.

*You can invite fewer than 20 children, but will still be charged the package rate. Use our Party Builder tool to add up to 10 extra children (maximum 30). Extra numbers will be charged at £25.00 per child.

The Mess

The Mess


42m2  (452ft2)


The Mess is adjacent to Play Base.

    The Mess


    • Natural daylight
    • Modular caterpillar soft seating
    • Party table and seating
    • Toilet facilities GF Lower Level
    • Audio input for iPhone or any mobile device

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    "First time @NAM_London today. Thoroughly enjoyed it. Thought the presentation & interpretation made the subject accessible..."