You should only attempt this cache around low tide. Leave yourself plenty of time as unless you want to get wet (and the sea can be pretty wild around here) you can only really get to and from the cache location about an hour either side of low tide.
You may encounter seals on the way round from Maori Bay to the cache site. You shouldn't approach them and don't position yourself between them and the sea.
The cache is located on an often deserted beach and the view from the cache site is shown in the images above. You're looking for a black screwtop container with a log book, pen and a couple of trade items.
kiwicouple