How do I fix this?

Hey all, I've got a number of photos of Mt. Merapi just before I left.
As it was bubbling away, there was a lot of haze around.
How do I go about trying to fix it? I've tried burning and dodging but the results just don't seem to be right.
Here's one of the photos as it stands:
Thanks
As it was bubbling away, there was a lot of haze around.
How do I go about trying to fix it? I've tried burning and dodging but the results just don't seem to be right.
Here's one of the photos as it stands:

Thanks