Birthday parties

Grendon offers tailored birthday party packages to ensure a special day is had by all.

About the party

Parties can include your chosen activities, use of a room for you to host your party in and a buffet lunch or tea. If you are interested in hiring Grendon to host your party we have packages available for room hire and catering, with or without activities.


Our dedicated party co-coordinators will talk you through programmes, costs and your tailored activity programme. All activities are subject to weather and availability. Paddle sports require a double session.

Your chosen activity will be led by an experienced and qualified activity instructor. If you’re booking a birthday party for a child we ask that at least one adult accompanies the instructor per 10 children.

Find out more about the activities we offer.

The room

The room hire package can be tailor-made to the needs of each individual.

Party menu

With our birthday party package we will provide the party food. The food will be prepared on site using fresh ingredients.

  • Sandwiches - chicken, egg and cress on wholemeal bread
  • Carrot sticks and low fat dip
  • Cherry tomatoes
  • Chicken and vegetable satay
  • Baked crisps
  • Fairy cakes
  • Fresh fruit
  • Apple or orange juice

To find out more about how we can cater for dietary requirements, make an enquiry.

The costs

We require a £5 deposit per person at the time of booking your party. We will process a letterhead invoice at the end of the month your party was held in for the remaining balance.

Half day or full day?​What is included​?Price
​Birthday party package​Half day​Room rental, 2 activity sessions (approx. 1.25 hours each)£19.50 per person (min 8 people)​
​Full day​Room rental, 4 activity sessions (approx 1.25 hours each) and a sandwich lunch£35.50 per person​ (min 8 people)
​Activity session​Half day​2 activity sessions (approx 1.25 hours each)​£14.50 per person (min 8 people)
​Full day​4 activity sessions (approx 1.25 hours each)​£29 per person (min 8 people)

How do I make a booking?

Enquire about booking a party

Frequently asked questions

You will still need to pay for a minimum of eight people. Remember you can always invite last minute friends.
If the weather is due to be wet or cold don’t worry! We can usually still go out as long as the group have plenty of layers on. Alternatively, if the weather is extremely bad (high winds or lightning) we can arrange an alternative date.
You need to ensure your group arrives in time for your booking to start promptly at the agreed time. Sessions will not run over if any of your party are late arriving. You will need to meet your activity instructor at our meeting point, which is the large oak tree next to the main office at the end of our drive.
The Grendon Outdoor Learning Centre is surrounded by lovely grounds. Most of our activities take place in our activity spinney. Canoeing and kayaking take place at a local river, with transport included in the costs.
If you have booked a birthday party package when the activity is finished you will go back to your party room where you will be able to eat your buffet. You may wish to bring additional drinks for your adults.
For all of our birthday packages we will provide plain crockery and cutlery. If you want to have a ‘themed’ birthday tea such as pirates or mermaids you will need to bring your own.
We ask that you leave the room tidy and clean with all food and any rubbish cleared away. Brushes and cleaning equipment will be available for you to use if required.