The Sunshine showing is located on the eastern side of Westernman Bay, which indents northward off the north shore of Belize Inlet.

Regionally, the area is underlain by Late Jurassic to Early Cretaceous unnamed dioritic intrusive rocks. Locally, several bands of hornfelsed metasediments strike north westerly, 305 to 340 degrees, and dip steeply to the northeast, being generally in altered contact with the surrounding diorite. These bands ranged from less than 1 metre wide to approximately 130 metres wide. Chlorite alteration and feldspar and epidote veining is common at sheared and often brecciated contacts between diorite and the host metasediments.

Sulphide mineralization, consisting of pyrite, pyrrhotite and chalcopyrite, occurs mostly throughout and adjacent to contact zones between intrusive diorites and metasediments. These occur in the form of fracture coatings, veinlets and disseminations.

In February 2006, a discovery of anomalous grade nickel was made while assessing new forestry roads. In 2007, Aztec Geoscience Inc. spent one day performing geological mapping and sampling. Sampling returned up to 238 parts per million copper and 3120 parts per million barium. A previous grab sample, from 2006, returned 430 parts million copper, 220 parts per million barium and 258 parts per million nickel (Assessment Report 29159).