The listing of the first cache GC6N100 ("Start") will give you detailed information on the hike. There you will find a map, waypoints and much more!
This is cache number four of the series. Before you have reached this spot you probably saw some lost places (houses, ovens) - I could not figure out what used to be the purpose of them. Depending on the tide you might also enjoy e beautiful black sand beach in this area.