This makes the upper waters of the river excellent for experienced canoers.

The upper waters are famous for flyfishing in the spring.

Most marine life is concentrated in the upper waters.

The upper waters of the Murray River form both the state and national-park boundaries in the southwest.

Fishing for pelagic species (fish occurring in mid and upper water)

Then something - perhaps a strong wind, cool weather, a storm or a landslide - causes a pocket of upper water to sink.

This allows to discern the silhouettes of prey moving overhead against the slightly brighter upper waters.

Its upper waters have yielded many very long siphonophores that can light up like a carnival at night.

"If we return you to the upper waters will you leave us?"

The upper waters were no longer midnight blue, but a deep aqua.