Checklist ...

Camera 
Memory card
Battery
Warm gloves
Wool cap
Warm winter jacket
Warm winter trousers
Wool socks 
Good walking shoes

... go find a river
... just a small one
... taking picture
... using long exposure

Something missing ... no ... don't think so?

Stepping out of the car
Small river in the woods
Taking the camera 
... and tripod ... tripod ... oh ... something is missing

I've done long exposure before
Just by putting the camera on the ground
The gloves go first because of the snow
... and then the camera

Looking good
... and now hands of the camera

Ooooooohhh ...

The camera is going down the slope
... round and round
... round and round

Think ... move quickly ... jump
... before it fall into the river 

The camera is covered in snow ... see extra image :) 

Clean it and find another spot ...