Herts Young Mariners' Base

Herts Young Mariners' Base provides land and water based activities for schools, colleges and youth groups.



Herts Young Mariners' Base (HYMB) has the Learning Outside the Classroom Quality Badge demonstrating high standards in all outdoor adventurous activities.

The centre boasts many years' experience of running fun, safe, challenging team building, land and water based activities for schools, colleges and youth groups, with many groups returning year after year.

Set in the picturesque Lea Valley Country Park, 3 minutes' walk from Cheshunt Railway Station, the HYMB is open throughout the year, for up to 150 students/young people and offers the following activities:

Canoeing, Kayaking, Climbing, Caving, Raft Building, Bellboating, Dragon Boating, Sailing, Windsurfing, Problem Solving, Adventure Games, Orienteering, Camping and Bushcraft.


Herts Young Mariners' Base can cater for all ability groups, including wheelchair users and has a variety of tracking and mobile hoists (Liko and Molift) for changing room aids and getting people in and out of water craft.

Courses are tailored to suit your specific educational needs. Please contact us to arrange a visit (if possible) to discuss your requirements and provide us with as much information as possible, so we can do our best to tailor your requirements. All risk assessments are available to view on site.

Camping at Herts Young Mariners' Base

Set in the heart of the Lee Valley Country Park, HYMB is an excellent camping venue with a variety of camping areas on site for up to 100 people. It is also situated next door to a youth hostel which offers attractive and modern accommodation for groups and families. More information on accommodation can be received from Herts Young Mariners' Base.


The Herts Young Mariners' Base is always heavily in demand and early bookings are encouraged to avoid disappointment.

To make an enquiry or booking please contact Herts Young Mariners' Base on: 01992 628403.

See more information and view HYMB on a map here.

231 Windmill Lane Cheshunt, Herts, EN8 9AJ