The Runway Mountain Bike Track opened in November 2013 and is situated on Auckland Airport land just behind a new business area known as 'The District'. According the media reports the area is still being expanded upon and will feature sports fields, an art trail, concert venue, expanded retail and a cool big playground right next to the MTB Park.
Either bring your family and friends or come alone but just don't forget your bike(s) for some adrenaline pumping fun. Some parts are more challenging than others but I have taken along a 4 and 6 year old with not too many issues.
This is the fourth cache along the track. The cache you are looking for at this location is slightly off the track and is of micro size although it is hidden in a larger camouflage. THERE IS NO NEED TO REMOVE ROCKS FROM THE RETAINING WALL TO FIND THIS.
Update 30/8/14: I have updated the hint and reduced the difficulty rating to reflect this. Please refer to the bold text above and look after the environment.
Enjoy your ride and please leave a little story about your visit.