The father of a young man who helped build a bike park in Christchurch's red zone says it's destruction by LINZ felt over the top. 

A group of eight boys spent their spare time constructing jumps and berms on a 100 metre stretch of land on Richmond Hill in Sumner.

Land Information New Zealand deconstructed the track after it was deemed a hazard- because land dangers in the area.

Andrew Docking told Simon and Phil says it wasn't the fact they flattened the park, but how they went about it.