Edwin is doing such a great job in the water!!!  Today, I let him float on his back nearly entirely on his own, while he held onto my hands with his cute little fingers!  But, then he decided to push his head way back, into the water, and when he does that, he surprises himself and goes all the way under with his head and gets startled.  So, we had to stop that activity for awhile.  That also happened later on in his swim today after he was already getting tired.  (Also, today I swam my 'normal' pre-pregnancy workout for the first time!  Finally!!!)