I went back to the lotus pond this morning at 7 AM, and the lotus flowers were indeed opening up. I was not the only visitor, but the other visitors were just bees gorging themselves on the inside of the flowers.
Lotus buds. These are young flowers that need a few more days before opening up.
Lotus flowers opening
Fully opened flower
Darker pink lotus. Note the bee gathering nectar.
Bee hovering over lotus
Bee landing on lotus
View of lotus pond
Still shy lotus