A new outdoor climbing experience has opened in Salcey Forest, near Northampton, which includes a 40ft ‘shock drop’.
Tree Ninja World is the first of its kind in Northamptonshire and is open to anyone above the age of seven years old or over 1.1 metres tall.
People who attempt the 1.1-kilometre course can wear ninja suits to protect their clothes.
Phil Butler, director of Tree Ninja world, said the course took between two and five hours to complete depending on the ability of the climber.
He said: “We are trying to broaden the spectrum of activities on offer to children.
“The Shock Drop offers an experience similar to that of Oblivion at Alton Towers.
“You don’t have to wear the ninja suits and we have found that most people that have turned up have decided to wear their own clothes and trainers.”
Unlike some forest rope climbing experiences, at Tree Ninja world people are always harnessed to the course.
Marshals are on the course monitoring all the people in the harnesses and a full safety briefing is provided.
During the summer months tree ninja world is open from 9am to 6.30pm and during the colder months its open from 10am to 4pm.
The official opening of Tree Ninja world will be on Saturday, August 24 and will be attended by Radio Two DJ Jo Whiley and Countdown host Nick Hewer. For people over the age of 18 years old Tree Ninja World costs £25 and for those under 18 it costs £20. It costs £8 to have a go on the Shock Drop.
Mr Butler said he was hoping to expand Tree Ninja World and possibly set up a new branch in Silverstone and in Leicestershire.
As well as the 18m Shock Drop the course also includes a 130m long zip line.