Otter
Two Otter Events
The Otter TERREX Trail presented by EasyEquities takes place annually and runs in the opposite direction each year. The Otter - Classic Edition traverses East to West, starting in Storms River and finishing in Natures Valley, with the Otter - Retto Edition Running West to East, from Natures Valley to Storms River.
The 42km route features rugged Indian Ocean coastline trails, indigenous forests, river crossings, spectacular scenery and 7,000 steps on average. Every year, we host two cut-off time-graded events:
- Otter - Challenge - Fearsome 11hr cut-off
- Otter - Race - Extreme 9hr cut-off
Grail of Trail

Otter Grail of Trail
Natures Valley Start
TrailFactor of 2.0
Four River Crossings

Route Profile
A total gain of over 2,600m over full route, including ±7,000 ascending steps. Steep enough to force the strongest runners to walk.
Eleven Significant Climbs
There are eleven climbs of more than 50 meters elevation gain, with 3 climbs exceeding 100 meters.
Pace Chart and Medal Times
The pace chart and pace bracelets provided will help you keep track of your targeted finishing time and will help you to stay ahead of all six cut-off points.
Otter Training Plans
The Otter TERREX Trail, presented by EasyEquities, is no ordinary race. With over 40 km of rugged terrain, 2,400 m of elevation gain, and more than 7,000 ascending steps, it’s twice as tough as a road marathon. Whether you’ve signed up for the Race with its 9-hour cut-off or the Challenge with 11 hours to finish, smart, consistent training is key to getting across the line.
This is where the Flat Rock Endurance team comes in. The plan is led by Toni McCann, a three-time Otter winner, professional athlete, and performance coach, and backed by coaches Erin van Eyssen and Brendan Lombard, who bring deep expertise in endurance, strength, and athlete health. Together, they have developed a course-specific training plan to help you prepare confidently, regardless of your starting point. With seven months of expert support and structure, this is your roadmap to your best Otter yet.
Compulsory kit
Weather factors affect compulsory kit levels
Compulsory Kit - Level 1
Fine, mild, hot but dry
Compulsory Kit - Level 2
Cool and/or wet
Compulsory Kit - Level 3
Cold, wet and/or windy
Compulsory Kit - Level 4
Very cold, and/or heavy rain
If conditions higher than Level 3 are predicted all kit required for Level 3 is compulsory.
In this case the official race will not take place, parts of the course will be rerouted & time delays should be expected.
Cancelled Event - Level 5
High winds, flooding and/or violent storm conditions with dangerously high seas.
















