Where's the Grave on Crystal Lake? ATDS

[Pencil]

I'm playing As the Dead Sleep right now, and I only have the crystal lake grave and the desolation point grave left. I arrive at Mountaineers hut and am ready to check the grave. However, I look at my map and look at the lake, and I cannot find the grave anywhere. The map states that it is on the middle of the lake... which doesn't really make sense, unless the body was thrown into the water and a cross was put on the ice where they were.... 

Am I blind, or is this grave actually hard to find? Is it actually on the lake? 

Side note: is there a category for challenges? I've had several discussions about challenges and felt that Survival Mode was not the right place to put them, but there was not really any better category. There should be one for challenges. 

[Lord of the Long Dark]

It’s just east of the mountaineers hut.