The device he brought that he cherished the most measured the blueness of the sky.

NPR: Excerpt: 'Natives and Exotics'

The ceiling growing higher and higher, until finally it was obscured by the blueness of empty air.

NEWYORKER: Ziggurat

While other South American beaches might top Punta del Diablo in wave height or blueness of the water, few compare in terms of tranquillity.

BBC: Uruguay��s laid-back surfing devil