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The Observatory Science Centre
Herstmonceux
Hailsham
East Sussex
BN27 1RN
Tel: 01323 832731
Fax: 01323 832741

Email Us

Birthday Parties for Children

No matter what the weather, we offer a Spectacular venue for an unforgettable birthday party!

Our party packages will keep children (and accompanying adults!) entertained.

Explore the options below and call us for further information.

Please contact The Centre to discuss options if your child is outside of this age range; or even if you are considering a birthday party for adults.

Ages 6 - 11

Morning parties: 10.30am - 1.30pm
Afternoon parties 2 pm - 5 pm (Summer): 1.30 pm - 4.30 pm (Winter)

This options includes:
- Access to the indoor interactive hands-on exhibits
- Access to the giant science equipment in the outdoor Discovery Park and Water Planet areas (weather permitting)
- A visit to one of the telescope domes with a member of staff for a short talk
- A simple make'n'take activityled by a member of staff to explore the exciting world of science. Themes incluide: 'Flight', 'Space', 'Sound'.
- A personalised souvenir vacuum-formed sign for the birthday child
- Geodesic dome booked exclusively to your party
- Choice of 2 birthday fayre menus.All you need to bring is your birthday cake!

COST: £11.25 per child (8 children minimum / 30 children maximum).
With every 4 children you can bring 1 adult free of charge to help you supervise the children.
Adults above the free ratio can stay for a reduced admission of just £5 pp.
Siblings (age 4+) of party guests will also be charged £5 admission and must be supervised by an adult.
The café will be open throughout if you wish to purchase additional refreshments.

Ages 10 - 14

Looking for something different?
What better way to celebrate than with a twilight party 4pm - 7pm.

This option includes:
- Access to the indoor interactive hands-on exhibits
- Access to the giant science equipment in the outdoor Discovery Park and Water Planet areas (weather and light permitting)
- A member of staff guiding you to two telescope domes after your food.
- Viewing through an historic telescope (weather / light permitting)
-
A personalised souvenir vacuum-formed sign for the birthday child
- Hot food served in the café (closed to the public)

Meal consists of:
homemade beef lasagne, homemade garlic bread, mixed leafy green salad
homemade chocolate brownie, vanilla ice cream
hot drink of choice

COST: £255 for up to 12 children and 3 adults

How to Book

To check availability please ring The Centre.
We can take all booking details over the phone (including card details for deposit), or you can print off a booking form and post to us (with a cheque deposit) once you have checked date availability.


A £25 deposit is required to secure a party.
Payment can be by cash, credit card or cheque (payable to 'Science Projects Ltd'). This deposit becomes non-refundable if the party is cancelled at less than 3 weeks notice.

If you are sending a Booking Form and / or cheque, please post to:
Mrs J Harris
The Observatory Science Centre
Herstmonceux
East Sussex
BN27 1RN
Telephone: 01323 832731

Important Information : Terms & Conditions

•The Centre is the venue for your party: we do NOT supervise your children. You bring a ratio of free adults (1 per 4 children) who have responsibility for the children at all times.
•A member of staff will be your party co-ordinator on the day and will meet your group, advise of timings, lead the tour, activity and generally oversee and be on hand to answer questions. They will not take responsibility for your children.
•You will be required to sign a Birthday Party Code of Conduct ensuring that the adults accompanying the party will be responsible for the safe conduct of the children at ALL times.
•Children & adults should dress appropriately for the weather conditions if they wish to use the outdoor areas or have booked a twilight party. Most areas are unheated.
•A deposit of £25 is required to secure the party. If the party is cancelled with less than 3 weeks' notice, the deposit becomes non-refundable.
•For daytime parties the balance is due on the day. You will be charged for the minimum of 8 children, even if less than 8 attend.
•For twilight parties the full payment is due 3 weeks before the party.
•We are unable to cater for severe allergies and children on a very restricted diet may prefer to bring their own food. Allergen information available on request. Please ensure you make us aware of special requirements and we will do our best to meet your needs, but may need to charge a supplement.
•The main buildings have very sensitive smoke alarms, but you are welcome to light candles for your birthday cake in the geodesic dome.
•We do NOT use balloons in any activity.
•We do NOT include sweets or balloons in the Party Bags.
•The Observatory Science Centre accepts no responsibility for personal property / presents etc.
•Child membership holders do not qualify for any discount on parties.
•Adult membership holders can accompany a daytime party free of charge (food additional).
•At the end of a daytime party, everyone is requested to go to our entrance reception / shop to meet their collecting adults. If families picking up their child wish to enter The Centre, they must pay the relevant admission price. With a twilight party there is no option for additional children / adults to stay at The Centre
Birthday Party Booking Form
Birthday Party Code of Conduct
Spectacular Science Suggestion
The Centre holds half day workshops in many of the local school holidays. At £11.25 per child they make a great 'alternative' birthday party for your child and their friends. Contact us for further details.
Party Bags
Our gift shop offers a wide range of science based pocket money toys which are perfect for party bags - prices start at just 15 pence. We are happy to prepare party bags for you to suit any budget (minimum £2.50) so please discuss options at the time of booking your party.