Schools & Youth Groups 

Bring your school, college or youth groups to Hertfordshire's Outdoor Education Centre and enjoy activities in a stunning location set in the heart of the idyllic Lee Valley Park. 

Our team will work with you to tailor your personal program to suit your needs whether it is curriculum enrichment week, an educational trip, team bonding/ team building activities, something more specific or just a day trip out.

Enquire Now

Options for your group

Single Activities

  • Prices starting from £70
  • One off activities for your group
  • For ages 8 and over
More Info

Multi-Activity Days

  • A a chance for you group to try 2 or 3 of our activities in a day.
  • For ages 8 and over
  • Prices starting from £140 per day
More Info

Accredited Courses

  • Work towards a nationally accredited course with your group
  • For ages 8 and over
  • Kayaking and canoeing, sailing or climbing courses available
  • Prices starting at £150 per course
More Info

What you need to know

  • Health and Saftey

    Booking an activity with us at Herts Young Mariners Base you can be assured that safety is our key priority. We are proud of our very high standards and professionalism. HYMB is inspected by a range of professional bodies including the following: Adventuremark and Learning Outside the Classroom Adventurous Activity Licensing Service (AALA) British Canoe Union (BCU) Health and Safety Executive Ofsted Royal Yachting Association (RYA)

  • Accomodation?

    We have two suggestions with regards to your groups accommodation. Go back to nature and camp on our land in the peaceful Lee Valley Park or stay in the comfort of the YHA Lee Valley Youth Hostel, just next door.

  • Can we hire camping equipment?

    The Outdoor Education Team’s camp store at HYMB has a wide range of outdoor equipment available for hire, at affordable prices to schools and youth groups. It is important that you book the equipment well in advance of your camp to avoid dispointment. Herts Young Mariners Base provides a “Pitch and Strike” service for its site users. Please phone for more information. If you wish to discuss your requirements contact us on 01992 628403 or email us at

  • Information for Parents

    We welcome parents to call the centre should they have any questions spicifally about the centre or if their school cannot provide them with adequate information.