How do you describe a duckling swimming in the water?

Ducks swimming in the water can be described as follows:

1. In the summer afternoon, the ducklings are playing in the pond. Their red mouths and green heads are particularly energetic.

2. The duckling jumps into the water and paddles briskly with two red feet.

The duckling floated leisurely, then fell into the bottom of the water and stood on the waves.

The duckling jumped into the pond, kicked, got into the pond and disappeared.

The duckling swims in the lake, splashing, as if singing freely.