Tidus is too busy trying to find a good way down the slope to notice any sniffing, a struggle between figuring a decent place to put his feet, and not go stumbling down. There is an odour of blood however for those with noses who can tell, though not the smell of decay. Something is surely wounded down there, badly, and if it'll make it is up in the air.

He's yet to get close. This is looking tricky, with Tidus wondering what they would even do once they get down there. But he looks back to Rezo, remembering suddenly, calling-

"Can you get one of your golems here to help move all this?!"