The cache is not located at the above given coordinates but they will bring you to Jardin des Papillons. To find out the actual cache coordinates you need to solve the following Bugwee riddle:
This cache belongs to the series of Bugwee caches each of which can be done independently. Not only does the additional task lead you to a place of interest but it is also needed to find the location of the bonus cache.
Before leaving the place, go about 300 meters to the North from the cache. Count the number of pines inside the walls.