Hertfordshire's outdoor education centre

Herts Young Mariners Base outdoor centre, known as HYMB, has been delivering high quality outdoor education sessions to adults and young people for over 50 years.

We offer a variety of adventurous outdoor activities to anyone aged eight and over and can provide tailored sessions for individuals, schools, colleges and youth groups


Featured Activities

Picture of Junior Easter Holidays

Junior Easter Holidays

  • HYMB Junior Membership required
  • Land and water based activities available
  • Full week for £120
More Info