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Registrations for the third ''Stump the Hump'' walk next month are arriving fast, and organisers expect a sell-out event.
Stump the Hump is a 24-hour walking event aimed at endurance athletes and adventurous trampers, who tackle the 55km Hump Ridge Track loop near Tuatapere.
Track general manger Trish King said the event was neither a race nor a run, and was designed for daring individuals from all sporting backgrounds.
Almost 200 people had already registered, and numbers are capped at 250.
Starting from Rarakau at midnight on February 1, walkers will trek over sandy beaches and through podocarp forest, reaching the Okaka Lodge in time to watch dawn break over the Takitimu Mountains and Stewart Island.
They will then head down Hump Ridge, through beech forest and across historic viaducts, arriving at Port Craig in time for lunch, before finishing on Saturday afternoon with a stroll through native forest to Bluecliffs Beach.
Stump the Hump is the annual fundraising event for the Tuatapere Hump Track Charitable Trust and all proceeds go towards the track and the Tuatapere community.