Quote Originally Posted by Slam Dancin' Moogle
Really? I didn't know that, but that does explain all those silver apples...

It has 30 floors, but WindGift Shrine has 40, but has really good swords in it...
The last I checked, the Lifespring Grotto had 20 floors, and the wind extra dungeon was known as Whisperwind Cove. I believe you may have gotten it confused with the Earthgift Shrine.