Save this for a fine day as it would be very challenging on a less than perfect day and a waste of effort since the views are amazing. These are part of the bones of Northland's ancient volcanic past but the bush (rain forest) has softened some of the contours.
A good level of fitness is required and care must be taken but this is well worth the effort. Northland has some great scenery and it really does suggest a lush and tropical island. When is it sunny and warm, it is truly amazing - a scenic gem!