The ferns immediately around the cache are kōwaowao, hound's tongue fern, microsorum pustulatum. A scrambling or climbing native fern with a thick, fleshy, rambling stem. The long-stalked, very glossy, leathery fronds are strap-like when young (looking a bit like a dog's tongue), older ferns become wide and very deeply lobed. Common in forest and scrub on trees, rocks or dry ground.
Supporting the GeoKids program - my caches have treasure, makes them fun for kids to find!
Background photo (c) Jon Sullivan.