What Is Rebun Island? The Floating Island of Flowers

Published 2026-10-04 · Sources checked 2026-10-04 · Treasure Hunting Co., Ltd.

This guide is for visitors who want to know what Rebun Island is and when its flowers bloom. It uses the English pages of "National Parks of Japan" (JNTO, with content provided by the Ministry of the Environment), JNTO's own pages and the Hokkaido Official Tourism Site "HOKKAIDO LOVE!". All pages were read on 2026-10-04. Bloom times vary by year, so check with a local guide.

The short answer

Rebun is the smaller of the two islands off Wakkanai, and part of Rishiri-Rebun-Sarobetsu National Park, which JNTO calls "Japan's northernmost national park". The park's page says Rebun Island is known locally as "the island of flowers", and JNTO's page calls it the "Floating Island of Flowers" with roughly 300 varieties of alpine plants growing wild "even at sea level".

Why the flowers are unusual

The park's Momoiwa tour page explains that cold-climate alpine plants can only survive at altitudes of 2,000 meters or more on Honshu, and even on Hokkaido only at 1,500 meters or more. On Rebun, however, they bloom near the shoreline. JNTO's feature on Hokkaido's flowers says the island preserves hundreds of species of hardy native wildflowers and rare alpine flora such as edelweiss and the lady's slipper orchid.

The flowers to look for

• Rebun atsumorisou (Cypripedium macranthos var. flavum), a lady's slipper orchid described as an endemic species that "blooms nowhere else in the world". The park page says you can walk on wooden pathways to see clusters of its milky-white flowers just south of Cape Sukoton.
• Rebun usuyukiso (Leontopodium discolor), the edelweiss species. A Hokkaido itinerary calls it the island's symbolic flower and "Princess of Alpine Flowers", with a peak from June to July.
• The golden perennial globe flower (Trollius hondoensis), which the park page says blooms with the edelweiss along the Momoiwa Trail from late spring through summer.

When to go

• JNTO says the peak flowering season is from May to August.
• JNTO also says flowers can be enjoyed from late April to mid-September and are particularly popular in the high tourist season from July to August.
• JNTO's flower feature says trekking is best between early June and August.
• The Hokkaido itinerary says the lady's slipper orchid at Cape Sukai is at its best from late May to mid-June.
• In winter the island is quiet: JNTO notes strong seasonal winds from November to February, and says the ferry may be suspended.

Other things to see

• Seals: from Cape Kanedano you can see seals basking in the sun from early summer to early winter, JNTO says.
• Coastline: JNTO describes Cape Sukoton at the island's northernmost point as showing "an entirely different face of the island with its rough, eroded coastline", and says the crags of Cape Gorota are similar.
• Birds: the park's page says the islands may offer a glimpse of white-tailed eagles, black woodpeckers and whistling swans.
• A film location: the Hokkaido itinerary says Kita no Canaria Park, near the southern tip of the island, preserves the wooden schoolhouse featured in the 2012 film "A Chorus of Angels".

Food

JNTO says the seas around Rishiri and Rebun produce a high-grade kelp known as Rishiri Kombu, and that the area is also famous for sea urchin. The Hokkaido itinerary describes hokke (Atka mackerel) chanchan-yaki as a local specialty on Rebun, and a sea urchin rice bowl at a restaurant run directly by the fisheries cooperative. The itinerary names the restaurants, but we do not repeat the names here because the pages give no current menus or prices.

Guided walks

JNTO's flower feature says there are seven trekking courses and that local guides offer a variety of tours, including one that takes participants to see colonies of edelweiss. The park's Momoiwa tour page describes a leisurely walk with an expert guide, wireless guide receivers and magnifying glasses so that you can see the tiny flowers. It lists English with advance notice.

What we could not verify, and therefore left out

• Exact bloom dates this year. The pages give ranges that differ slightly from one page to another.
• Guided tour prices and booking links.
• Restaurant opening hours and menus.

Related guides

• How do you get to Rebun Island and get around from Wakkanai?
• How do you walk Rebun Island? Cape Sukoton, Cape Gorota and the Momoiwa Trail

Sources

All URLs retrieved 2026-10-04.

1. Explore Rishiri-Rebun-Sarobetsu National Park (National Parks of Japan) — (flowers, Sukoton, Momoiwa, kelp, urchin)
2. Momoiwa Observatory Walking Tour (National Parks of Japan) — (altitude, 300 varieties, guided walk)
3. Rishiri & Rebun (JNTO) — (season, seals, winter)
4. Seasonal beauty of Hokkaido: Furano to Rebun (JNTO) — (seven trekking courses)
5. Wakkanai, Rishiri and Rebun sample itinerary (HOKKAIDO LOVE!) — (orchid, usuyukiso, food, film)