Japan does winter illumination with industrial enthusiasm — every city has its tunnel of lights. What Tottori has, alone, is a backdrop: the largest accessible sand dunes in the country, a Sahara in miniature pressed against the Sea of Japan. Each December, for roughly the middle two weeks of the month, the ground at the foot of the dunes fills with light for the Tottori Sakyu Illusion, and the effect depends less on the bulbs than on what lies behind them — a vast, wave-ridged darkness of sand, breathing cold air down onto the glow.

The theme changes yearly; some years the displays sketch Tottori's crabs and pears in points of light, other years the event runs quieter, illumination alone, without stages or food stalls. It never competes with Kobe or Ashikaga on scale, and that restraint suits the place. The right itinerary is simple: walk the dunes in the pale afternoon, let the sea wind scour you clean, then come down at dusk as the lights switch on and the temperature drops.

The site is beside the dunes' main parking area, about twenty minutes by bus from Tottori Station, with shuttle buses on event weekends. Lights run from nightfall to around nine. December in San'in is properly cold — bring everything warm you own. Some views are only issued in exchange for cold hands, and this is one of them.