I visited a different vernal pool that is located in the Freetown-Fall River State Forest. I haven't visited this pool in a number of years. It is located alongside the road. It was not an early morning visit, but getting on toward midday and the sun was out and the air was warm and comfortable. Arriving at the pool and searching the shoreline, there was on the far shore, a painted turtle was sunning.
Closer inspection of the near shore showed a large number of frog egg masses, probably wood frog, and the interesting part was a number of large tadpoles were swimming around the masses and apparently nibbling on the egg masses.
But the surprise of the visited was the appearance of a ribbon snake swimming through the water and then disappearing into the underbrush.
Visiting a vernal pool is a study in nature and what you see will very even from day to day. So get out take a walk in the woods and visit vernal pools.