The Challenge

The Chiltern 20 Challenge

The Chiltern 20 Challenge Hike is a tough walk in The Chiltern Hills, organised by Greater London North Scout County.

The challenge is a test of physical ability as well as good orienteering.

Please ensure that each member of your team along with any accompanying adults reads this guide and understands the rules of the event.

There are two levels of this challenge event: a Junior event where the Scouts will navigate around a shorter route of up to 15km, and a Senior event where the Scouts will navigate around a longer route of up to 25km.

The Junior event is for Scouts aged under 12 years old on the day. They must be accompanied by up to two adults.

The Senior event is for any member of the Scout Troop. There are two entry levels in the Senior event: “A” – no adult walking with team, “B” – maximum of two adults accompanying the team. 

All adults accompanying a team must be current members of The Scout Association and must supply their membership number when teams are registered. Any adult walking with a team is honour bound not to take the lead. This role is purely to ensure the safety of the young people.

All walkers will receive an individual certificate which can be used to pass part of the Teamwork Challenge Badge.

Whatever the reason, you will enjoy our challenge and, we are sure, find the event very rewarding.


Each team must comprise between three and five Scouts. A team may be accompanied by up to two adults if the Scout Leader decides this would be a safer option for the team.

The event is open to all members of The Scout Association who are in the Scout Troop Section born after 21st April 2003.


How to Enter, for details of how to enter your team(s). Here you will also find the cost and what you get for your money.

The Event, for details of the Start and Finish location, registration, accommodation, meals and presentation.

Rules of the event.

Kit List, for details of personal and team kit required for the event both compulsory and suggested items. And the maps needed for this year’s event. Although it may look tame on the map, in October the conditions can be very changeable, this is why we expect all walkers to be prepared.

The Event


Please ensure all members of your team, that's Scouts and Leaders, read these instructions as well as the Rules and Kit List and that you all understand the arrangements for the event.


Both routes will both be based on Princes Risborough School.

OS Map 1:25000 Explorer sheet 181. Grid reference: SP 809 029

Princes Risborough School, Merton Road,
Princes Risborough, Buckinghamshire
HP27 0DR.

Directions and Parking
There is a rear entrance to the school from New Road, BUT all vehicles MUST approach from Clifford Road and Merton Road where they will be met at the school gates and shown where to park by car park marshals.

From the M25 (travelling from Enfield/Southgate/Waltham Cross) Princes Risborough is best reached by leaving the M25 motorway at junction 20 (A41) and then following signs to Aylesbury on the A41. Leave the A41 at junction with B4009 and B488 (signposted to Wendover). Follow the A4009 into Wendover, and head straight through the town following signs to Princes Risborough. In Princes Risborough turn left at the first roundabout, and right at second roundabout. Clifford Road is the second turning on the left.

From the south and south west, leave the M25 at junction 16 (M40) and follow the M40 to junction 4 (A404). When you leave the motorway follow the signs to the A4010 (signposted to Aylesbury) which goes to Princes Risborough, approximately 9 miles from M40. Clifford Road is the second turning on the right after the junction with the B4444.

Teams wishing to use public transport should be aware that Princes Risborough railway station is approximately one kilometre from the school and we regret that we are unable to arrange any transport between the station and school.
The train service is operated by Chiltern Railways, and the journey time varies between 32 minutes for a fast train to 54 minutes for a stopping train from London Marylebone. Should you choose this method of travel, please check ticket prices. There are group discounts available, but you may need to book these in advance. 
For full details we suggest you start at:


The emergency telephone number for Central Control is a mobile number 07960 282626. Please ensure your team’s home contact has this number which will be operational from 07:00hrs on Saturday.


All teams must report to the start at least 30 minutes before their start time. The Registration Desk will be open from 06:30hrs. The first teams will start at 07:30hrs after a strict kit check, the remaining teams will follow at timed intervals. Each team will receive their start time, and their required registration time by email at least seven days before the event.

Please follow the signs for the car park for this event as you enter the site. It is important that you do not park in other areas or obstruct access for other vehicles.

There will be direction and other signs displayed at the site to assist you in navigating your way around. Please do not settle down anywhere other than where instructed.

Teams will need to register before proceeding through to kit check, and the start.


Please check in on arrival. When you check in please report as a complete team and you will be issued with the necessary items for the walk.

These include:

  • Identity Wristbands (team no. plus A,B,C,D,E,F,G) - these are individual to each competitor and should be worn on the wrist at all times for identification and obtaining meals. The emergency telephone number is also on the wrist band.

If you have any team member changes please log on to the online entry database and make the necessary amendments. This can be done up until midnight on the Thursday before the event. After this time, changes will need to be made at the registration desk on arrival.

It is the Scout Leader’s responsibility to ensure that all those taking part are aware of the rules. In addition, the Scout Leader must ensure that their team knows:

  • Their team name
  • Their team leader (shown “A” on the entry form and not the adult if one is walking with the team)
  • Team number (as issued by the event organisers)
  • Telephone number of the mobile telephone carried by the team (see kit list).


Teams will be timed in and out at one of the checkpoints where navigation training will be given by the GLN Mountaineering Team and where walkers will break for lunch. These sessions are designed to make the event more interesting and to improve the team’s ability to navigate. The time spent WILL NOT count towards the team’s finishing time.


Those of you bringing along supporters are reminded that food and drink at checkpoints is for teams only. Supporters can pick up details of the route from the Information Desk once all the teams have started, and ensure that any parking restrictions are followed.


An evening meal will be provided for all participants.


The presentations for the event will start at 18:00hrs with an event summary, Guest speaker, Certificates and trophy presentation.

The whole event should be complete by 19:00hrs. The wearing of uniform for the presentations is optional but preferred.

The organisers would appreciate any help with 30 minutes of clearing up at the end.


For your safety and the future of the event please observe the following whilst on the School premises:

  • No smoking anywhere in the buildings or anywhere on site
  • Fire Exits must be kept clear
  • Do not obstruct doors or gangways
  • Do not obstruct or tamper with fire fighting equipment
  • Familiarise yourself with the fire evacuation procedure

In case of fire:

  • If you discover a fire, sound the alarm, alert a Chiltern 20 official and call the fire services (or ensure someone does).
  • On hearing the alarm proceed to the nearest fire exit and make your way to the fire assembly point outside the building
  • Once outside at the assembly point give your name to the official on duty

The Chiltern 20 organisers will appoint fire wardens who will patrol the site and take charge in the event of a fire. Please follow any instructions they give.



  1.  This event is open to any member of the Scout section being born after 21st April 2003.
  2. Teams entering the Junior event must comprise of three, four or five Scouts with or up to two accompanying adults.
  3. Teams entering the Senior event must comprise of three, four or five Scouts with or without one or two accompanying adults.
  4. Wrist bands and tracker bands MUST be worn at ALL times and shown when asked.
  5. Orange tracker bands will be issued when teams register and will be worn at all times during the event, and handed back at the finish.
  6. The kit list comprises a part of these rules.
  7. Team members wishing to retire should do so only at a checkpoint where the checkpoint manager will make the necessary arrangements.
  8. Should one member of the team wish to retire, the remaining walkers may continue as long as at least three Scouts are still walking. If not, those wishing to continue must join up with other walkers. Any incomplete team will not qualify for a trophy; the complete team that started must finish together to qualify for a trophy. Only finishing teams that consist of the same walkers that started will get a finishing time and place. Incomplete teams will get a finishing time but not a placing.
  9. Checkpoints must be reached in the order given. It is the team’s responsibility to obtain a signature on the team’s route card from the checkpoint manager. All team members must keep together at all times. The time of the last team member is the one that will be recorded. 
  10. Time spent at each checkpoint will be included in the official finishing time, unless it is a training checkpoint.
  11. Teams using any external support or assistance by whatever means may be disqualified.
  12. This is an event for young people of Scout age. Young Leaders cannot participate in the event.
  13. All adults accompanying a team must be current members of The Scout Association and have a valid DBS certificate. They must supply their membership number when teams are registered. Any adult walking with a team is honour bound not to take the lead. This role is purely to ensure the safety of the young people. 
  14. DO NOT cross or walk along any ‘A’ class roads except in an emergency, or where instructed to do so.
  15. When walking across country, obey the Country Code and have respect for people’s property. Teams will be subject to disqualification if they are found to have dropped litter.
  16. All members of the team including all accompanying adults are required to wear hi-vis jackets (with or without sleeves) as the outer most layer of clothing and be visible from the rear at all times.
  17. Teams MUST phone the emergency number if they do not reach the next checkpoint after two hours walking from the previous checkpoint.
  18. The organisers and officials have the right to stop the event and/or walkers from continuing at their discretion. A walker will be withdrawn from the event and not be allowed to continue if in the opinion of an event official they are deemed unfit to continue or making unsatisfactory progress.
  19. No team or participant can be withdrawn during the event without permission from Central Control or event official.
  20. The decision of the organising committee is final and they willadjust the rules and route if they consider necessary. They cannot be held personally responsible for any mishap or injury, however caused, during the event.
Kit List

Essential Kit List

The following map is required:

OS Explorer Map 181 - Chiltern Hills North

All participants must wear walking boots or robust shoes (no trainers). Participants will not be permitted to walk if they are not wearing walking boots or robust shoes.

All walkers must wear or carry:

  • Suitable clothing for weather conditions (no denim clothing) which must include each of the following items:
  • Waterproof jacket with hood and waterproof over-trousers
  • Jumper or fleece
  • Walking boots or robust shoes with a gripped sole (no trainers)
  • Hi-vis jacket (with or without sleeves)
  • Identification wristband and orange tracker band (issued to each participant when teams register)
  • Day sack containing:
  • Gloves
  • Hat
  • Lunch
  • Water in a suitable container
  • Emergency rations
  • Mug

All teams must carry:

  • Two OS maps of the area (see top of page). Maps must either be waterproof or in a map case.
  • Two compasses (Silva or similar)
  • Compact basic first aid kit
  • Small wind-up or battery operated torch with spare batteries
  • Watch
  • At least one mobile phone which must be fully charged at the start of the event and must be switched on throughout the event. The mobile phone number must be given to the member of staff at registration

Suggested items you may also need for the day:

  • Wash kit to freshen up
  • Change of clothes
  • Change of footwear. Please note that the walking boots / shoes you use for the event will be taken from you at the Finish Control on returning to the finish and placed in a bin bag with your team number, it can be collected when you leave. This policy allows us to keep the accommodation as free of mud as possible

How to Enter

How to Enter

Please send the entry form well before the closing date to avoid disappointment - the event is so popular that we are having to turn late team entries away. 

Demand for this event is very high, so to make it fair for all, your entry will only be placed into the draw on receipt of your entry fee, by cheque, or by BACS payment.

The entry fee for this year's event is £45 per team and includes the following:

  • Venue to host the event.
  • Evening meal.
  • Water at most checkpoints.
  • Transport (where necessary).
  • First aid and rescue facilities.
  • Communications and Administration

Entering the Chiltern 20 Challenge is done in two parts.


There has been some disruption to the on-line entry system for the Chiltern 20 Challenge.

The issue has now been resolved, and registration is now available again.

We apologise for the inconvenience caused, thank you for your patience.

Chris Feakes
Registrar ~ Chiltern 20 Challenge

Updated 6th September 2017


  • Entries will open at midnight on Saturday 1st July 2017.
  • Click here to log in to the Entry Database.
  • Entries will close at 10pm on Saturday 8th October 2017.
  • Then follow the instructions below to create a team record entry and fill in the names and other information requested.
    • Select "Chiltern_2017".
    • Click on ‘Guest’, then click ‘Login’.
    • Follow instructions when database actually loads. You will have to create your own username and password
    • This system allows you to create your own entry record. You type in your name, and a password of your choice.
    • Whenever you want to look at or change your details, you will need that password - so don't forget it!
    • Entries made before the closing date can be amended (names and other personal details) up to 10pm on Friday 13th October 2017.
    • All Adult walkers accompanying teams must supply their Scout Association membership number. This will be checked against Compass. Changes to adult walkers accompanying teams cannot be made after 13th October. This allows us time to carry out the necessary checks. Adult walkers accompanying teams not declared by 13th October WILL NOT BE PERMITTED TO TAKE PART. Changes can be made to young person walkers at the reception desk at the walk venue.
  • It also saves us typing out your details and it avoids mistakes in the entry. It also saves a lot of paper.



  • Select the Entry Form Page and print a copy
  • Sign this document, place it in an envelope with a cheque to cover the entry fee and post it to the walk secretary.
  • Cheques should be made payable to 'Southern 50 Challenge'. 


  • Select the On-Line Payment Entry Form
  • Make your payment direct to the Southern 50 bank account (details are provided).
  • Enter the figure that you have transferred and check the box to agree with the conditions of entry.
  • Print this page as a pdf document.
  • Email this document to our walk registrar. 


If for some reason you are unable to complete the process in this way, please make contact with the walk secretary who will then make paper copies available for you to complete.

Hints & Tips

Hints and Tips for a Successful Challenge

Training for the event should involve some map reading and walking. Ideally this should be in the countryside but if this is not possible try navigating around your HQ, local park and neighbourhood. If you do not train it does not mean that you will not finish but it might mean that you get lost and end up walking twice as far as everyone else. The County Mountaineering Team is offering navigation training – details will appear on the website.

  • Do not try breaking in new boots or shoes on the event. It will hurt - a lot.
  • Check all kit well before, when you enter would be a good idea.
  • It is a navigation exercise so it would help if all of the team could use a compass and understand a map
  • Try to send the entry form well before the closing date to avoid disappointment - the event is so popular that we are having to turn late team entries away.
Reports & Results
Photos & Video

This Chiltern 20 & Southern 50 weather forecast is generated by the Met Office Weather Widget