Key Features

For longer routes: -

  • Be prepared for walking in the countryside, these routes will take you across fields, through forestry and up some very big hills….. Given the weather we’ve had for the past few years…..Expect to get wet and muddy!

  • THE ROUTES ARE NOT WAYMARKED….. You need to be able to read a map or be with someone who can!

  • All the routes are STRENUOUS challenges that involve steep ascents and descents on difficult terrain. (except for the 1-5 mile… that’s along the canal)

  • Minimum entry age is 12, all entrants under 18 must be fit enough to complete the challenge and be accompanied by a responsible adult.

  • Dogs are welcome, but must be under control at all times and be fit enough to complete the challenge.

  • Cut off times apply i.e. you will be required to retire early if you don’t make each checkpoint within a certain time

  • Booking opens on the 1st of October

  • Entry fee payable: £10

  • EXTENDED Early bird entry if you book on before 1st February 2018:  £8

  • Extra £2 discount for entrants aged 18 and under

  • Water is available at each checkpoint

  • No entries on the day

  • Closing date for bookings Wednesday 2nd of May 2018

For 1-5 mile route: -

  • No Mini‚Äčmum age
  • £2 entry fee
  • Enter online or on the day

The Twmbarlwm Trek 2018

Saturday 12th of May, 2018

This year Caerphilly County Borough Council’s Countryside and Landscape Service, in conjunction with Caerphilly Adventure Group, Caerphilly Ramblers, Islwyn Ramblers and other partners, are once again throwing down a SERIOUS challenge for walkers and runners of all abilities.

As always… the Caerphilly Challenge Series will have routes suitable for all fitness levels and abilities.

There will be a challenge that suits you! 

Are you up for the challenge?

Challenge options (exact distances TBC)

  • 1-5 mile route (led walk)* Entries on the day
  • 9-11 mile route (led walk)
  • 11-15 mile route (self-led challenge and led walk)
  • 18-22 mile route (self-led challenge and led walk).



How to get to the event, the rules and regulations of participating, onsite facilities, HOW TO REGISTER and useful information that will help in planning your visit.

Caerphilly 10k route map

Route maps

There are four routes of varying distances, ranging from the 1-5 mile challenge to 22 mile challenge.


Look who's supporting the Wild Boar 2017…