Don’t know the Blue Oyster Bar, do remember the Blue Oyster Cult,for some reason my memory of specifics about them seems a little foggy, maybe it was the alcohol...or something.
The Blue Hole is a huge artesian well in the middle of the desert, it is cold, gin clear water, you can stand on the edge and clearly see the bottom 80’ down.
I would imagine a century ago the natives in the area held it as a mystical place. Blue Hole