Look at the tiny insects swimming beneath the light bulb!
Beth filled her lungs with air then slipped under and swam beneath the water to the place where she'd seen his dark head.
She watched a newt as it swam beneath some weed.
He swam beneath the city, outward toward the rim.
Finnegan swam a lot beneath the surface of the water wearing a face mask.
Occasionally something swam past him beneath the surface of the water, brushing against his leg.
And yet from where he was now, swimming beneath the open sea beyond the hidden cove, he must have time.
After swimming a short distance beneath the surface the girl rose and looked about her.
He held on to her ankle as they swam beneath the water.
They swam in and out of focus beneath him.