Do not go to the posted coordinates! That is not where the cache is located.
In fact, I'm not going to tell you where the cache is located. In fact, all that I'm going to tell you is that it is not at S38 59.146 E085 19.739. I mean, it's not anywhere in the Indian Ocean at all, but it's especially not at S38 59.146 E085 19.739. Nowhere near La Roche Godon, in fact. Very far from there. So just avoid the posted coordinates, and avoid S38 59.146 E085 19.739, and you should do fine.
Oh, the cache is also in the public right of way, so there's no need to get on anybody's private property, so that should narrow things down.