Two OMM competitors in blue waterproof jackets smiling on a misty hillside

Line course · South Wales 2027

B
Course

Shorter distance.
Same adventure.

Our shortest Line course brings together two days of navigation, teamwork and an overnight camp. Visit every checkpoint in order and find the route that works for your partnership.

Your route between checkpoints is your choice. The fastest team across both days wins.

Two OMM competitors carrying packs through open grassland beneath a blue sky

The course at a glance

A two-day mountain navigation challenge for teams of two or three. You receive your course map at the start, then plan your own route through a fixed sequence of checkpoints.

2021 example course

Day 1

25 km

1,100 m ascent

Day 1 example map (opens in a new tab)

Day 2

20 km

900 m ascent

Day 2 example map (opens in a new tab)

*Indicative distances. These examples are a guide to the challenge. You will find out the actual route distance and climb upon receiving the map at the start line; 2027 course details will follow.

TeamTwo - three people
NavigationMap and compass
OvernightCarry your camping kit
Course mapIssued at the start

The route is
your decision.

You’ll get the map at the start, then choose your own line between checkpoints. Fastest team wins.

Watch an example race (opens YouTube in a new tab)

Archive event photography

Is this your course?

A shorter Line option for teams with mountain experience and confident navigation. You’ll still carry your camping kit and make your own route choices over two demanding days. Choose the course that suits both you and your partner.

Download your OMM guide

Get ready for the weekend

Course questions

How does this format work?

Visit the checkpoints in the specified order, choosing your route between them. The fastest team across both days wins.

What experience do we need?

B is the shortest Line option, but both partners still need mountain fitness, map-and-compass skills and the ability to manage themselves and their kit in changing conditions. Choose a course suited to both team members, and review the event’s entry requirements when booking.

What do we carry?

Carry the equipment, clothing, food and camping kit you need for the full weekend. The mandatory kit list is the minimum requirement; choose any additional kit to suit the conditions.
Read the kit guidance

How does the overnight camp work?

Day 1 finishes at the overnight camp, where you use the kit you have carried. Day 2 brings a new set of checkpoints and a return to the event centre.

Download your
guide to the OMM

Learn all you need to know about the OMM by downloading our race guide. It includes information about the courses, kit and some helpful tips and guidance.

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