Over the last few years the high temperature areas have been growing. The mud hole bubbles
more than before, but the activities on the surface cannot be connected directly to the ones beneath.
By the way, the cold mud sticks incredibly at the bottom of my shoes. In rainy weather one collects whole 'plates' of mud on
a short hike! The rest of the clothes has an uncomparable scent - pure rotten eggs! *grin*