Anyone who has lived in this area for any length of time recalls driving down Talamini by the swim club and hearing that very strange sound that ends shortly after it begins. Apparently due to safety grooves cut in the road, it happens when you travel in either direction. Hence the cache name.
Park in the gravel lot by the club and please, use stealth. Neighbors and, in summer, swimmers, may be watching!
Shouldn't be too hard to bring this one in. Have fun and God bless!