From a New York Times online article:
But there is nothing quite like the mind-bending spectacle now on display at dusk in the hills of Paso Robles here, a popular wine destination. That is the witching hour when thousands of solar-powered glass orbs on stems, created by the artist Bruce Munro, enfold visitors in an earthbound aurora borealis of shifting hues.
Since it opened in May, “Field of Light at Sensorio” — the 60-year-old British artist’s largest such installation to date — has drawn thousands of tourists and become an Instagram phenomenon. The subtly changing patterns of this light safari, activated by a nebula of fiber-optic cables attached to hidden projectors, seem to inspire a cathedral-like awe among ticket-holders, who pay $19 to $30 for an evening stroll along 15 acres of illuminated walkways.