"There are many unique elements to the run, you have never been able to run through Te Puia or the Buried Village, and it goes over private property like Woodstock Farm.
"The scenery is stunning and changes the whole time - 90 per cent of runners are coming from outside the Bay of Plenty so it will be a real treat, as well as getting to run in places that you can't usually, it is a privilege to have access to these private places and it's a big day-long adventure," Mr Charteris said.
He was hoping to attract overseas interest because of the unique elements of the run.
"I have always wanted to do an adventurous marathon. For the past seven years I have been thinking about it, and it"s taken that long for the perfect track to exist. It's a really good build up event for the ultramarathon [in February]. New Zealand doesn't have an off road marathon that's attractive to people overseas," he said.
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Details
What: Tarawera Trail Marathon and 50km
When: Saturday November 15
Where: Race starts Pohutu Geyser, Te Puia, Hemo Road, Rotorua.
Cost: $190 for 42.2km, $220 for 50km