JOURNAL ・ FIELD NOTES

Diamond Tsukuba — 2 Million Poppies & a Sunrise on the Summit

On the broad riverbank of the Kokaigawa in Shimotsuma, Ibaraki, some two million Shirley poppies wait in the dim light before dawn. For only a few mornings each year, the sun rises exactly on the summit of Mt. Tsukuba to the east, and a single point of light settles on the peak — the morning miracle known as "Diamond Tsukuba." People gather well before sunrise, hoping to catch the moment when the red of the poppies and the diamond of light overlap.

The morning a diamond lights the summit

Diamond Tsukuba is a fleeting instant, when the sun aligns perfectly with the peak of Mt. Tsukuba. At Kokaigawa Park, that window comes around late May, overlapping with the poppies' peak. You set your tripod while the sky is still deep blue, steady your breath, and wait. The ridgeline melts into orange, and the moment light spills over the summit, the entire field of red wakes at once. Even for someone used to "waiting" in the emergency room, this particular morning sets the heart racing.

From blue hour to first light

The magic here isn't only that single diamond instant. Mt. Tsukuba sinking into the blue hour before sunrise, with two million poppies in silhouette, is its own quiet, beautiful time. The sky's gradient shifts moment by moment, a gentle reminder that no two mornings are ever the same.

A single point of light on the summit;
a sea of red waking at dawn.

Planning your visit — season & the diamond window

A few notes for those hoping to see it in person.

The poppies are usually at their peak from mid to late May, around two million of them blooming beneath Mt. Tsukuba. Diamond Tsukuba is generally visible for a few days around May 24, but the exact alignment and date shift from year to year. If you're going to photograph it, check the latest local information and sunrise times, and arrive before dawn. The "Kokaigawa Flower Festival" is also held during the bloom.

Getting there & parking

The venue is Kokaigawa Fureai Park in Shimotsuma, Ibaraki. By car it's about 20 minutes from the Jōsō IC or 40 minutes from the Tsuchiura-kita IC, with free parking for 379 cars (the lot along Route 125, near the flower zone, is convenient). By public transport, take a bus about 10 minutes from Shimotsuma Station on the Kantō Railway Jōsō Line, then a 5-minute walk from the "Hige" bus stop. The riverbank can be chilly at dawn, so bring a layer.

Tips for photographers

If you're after Diamond Tsukuba, a tripod is essential. Sunrise carries a wide range of light, so expose for the light on the summit and let the poppies sit a touch darker to keep the red rich. Start shooting in the blue hour before the sun appears, and capture the shifting colours of the sky as well. A telephoto lens that compresses Mt. Tsukuba and the poppies together makes for a powerful frame.

While you're in the area

The countryside around the Kokaigawa is gently rural, and the towns of Shimotsuma and Yūki nearby still hold streets with history. After the morning poppies, they make an easy, unhurried stop.

💎 Hold this instant

This scene is available as a fine-art silver-halide print on premium FUJICOLOR paper, hand-printed in Japan and shipped worldwide.

View the print →