The cache (Accuracy 30 m Elevation 110 m) is buried (no digging required) in a 0.3 litre waterproof square plastic snap lock container. You can get to the car park from Eglinton Road (near the top of High Street). Don't forget the view of the city. From the carpark it's easiest to walk along the grass beside the bush to S 45°52.983' E 170°29.275', there you will have a virtually unobstructed route to the cache (I don't recommend the direct route).
Free Hint: The cache site is marked with two crossed sticks on top of the cache. Note that it will be very difficult to find the cache if the sticks have been removed or disturbed. You may have difficulty obtaining an accurate position fix under the closely packed trees.