They are filling the pond to make sure there aren't any leaks and that the waterfall cascade is level.
Underneath the pedestrian footbridge is the best spot for mushrooms. I think this is a morel, Morchella esculenta. I am consulting with some mushroom experts to see if they can make a positive identification.
Apparently the Monarch caterpillar I found two weeks ago made its pupal case on a wall. I just love how green they are!
