The cache is not at the posted coordinates. If you go there you'll find a street named after Spongebob Squarepants best friend Patrick, but there is no cache there.
To find this cache you'll first need to know how to beat the Dirty Bubble Challenge. It probably won't take you nearly as long to find the information you need as it would to complete the challenge so you don't need to do that!
Once you've got the information you need here's where the final is:
S 36 5a.bcd E 174 4c.bdd
The cache is by the roadside so be careful of juniors cachers and geohounds. Please bring your own pen.