You could point to a lot of pine trees around Sunset Lake but one seemed to stand out. A boat (non-motorized) might be good. Otherwise, expect to do a lot of bushwhacking through wet areas. The lake is surrounded by streams, springs and swampy areas. Should be fun to get to. The cache is a hanging winter-friendly camo-taped bison tube.
The best parking might be at the boat landing on Lake Road, if boating, or at the end of Lake Road, if hiking. The road is not generally open or plowed in winter.