Iya Valley vine bridge with autumn colours in Shikoku

Shikoku Region

Japan’s smallest main island — four prefectures of pilgrimage temples, Iya Valley vine bridges and the Setouchi art islands.

Japan’s smallest main island — four prefectures of pilgrimage temples, Iya Valley vine bridges and the Setouchi art islands.

Shikoku is Japan’s smallest main island — separated from Honshu by the Inland Sea and from Kyushu by the Bungo Channel. Four prefectures wrap a mountainous interior, the famous 88-temple Kobo Daishi pilgrimage circles the entire coast, and the Setouchi art islands sit just offshore. Foreign visitors are rare here, even though three world-class draws (Iya Valley, Matsuyama / Dogo Onsen, Kochi’s Pacific coastline) sit within a one-week loop of each other.

Prefectures

Four prefectures wrap a mountainous interior — the famous 88-temple pilgrimage circles the entire island.

Tokushima

Tokushima

Iya Valley vine bridges, Naruto whirlpools, Awa Odori dance festival

Iya Valley + Awa Odori

  • Iya Valley
  • Naruto whirlpools
  • Awa Odori (Aug)
Kagawa

Kagawa

Sanuki udon home, Takamatsu, Ritsurin Garden, ferry hub for Naoshima/Teshima

Udon + art-island gateway

  • Sanuki udon tour
  • Ritsurin Garden
  • Naoshima ferry
Ehime

Ehime

Matsuyama Castle, Dogo Onsen, Shimanami Kaido cycling route to Hiroshima

Castle + onsen + cycling

  • Matsuyama Castle
  • Dogo Onsen bath-house
  • Shimanami Kaido
Kochi

Kochi

Pacific coastline, Kochi Castle, the Niyodo Blue river, southern pilgrimage temples

Pacific coast + remote temples

  • Cape Ashizuri
  • Niyodo River
  • Hirome Market food stalls

When to Visit

Shikoku is mild Pacific-side Japan — long shoulder seasons, manageable summers, mostly snow-free winters.

Springharu

Mar–May8–22°CModerate crowds
  • Cherry blossom in late March / early April
  • Pilgrimage walking-season starts
  • Iya Valley fresh green
  • Mild Inland Sea ferry crossings

Summernatsu

Jun–Aug22–32°CHigh crowds
  • Awa Odori (Tokushima dance festival, 12-15 August)
  • Hot but lush mountain interior
  • Setouchi Triennale summer session in 2026

Autumnaki

Sep–Nov12–26°CModerate crowds
  • Mid-November koyo in Iya Valley
  • Setouchi Triennale autumn session in 2026
  • Rice harvest in Kochi

Winterfuyu

Dec–Feb3–13°CLow crowds
  • Mild Pacific-side winters in Kochi
  • Quiet onsen at Dogo (Matsuyama)
  • Snow only on inland mountain passes

Suggested Itineraries

Shikoku rewards an island-focused trip or pairs naturally with Setouchi (Naoshima/Hiroshima/Okayama).

FAQ

How many days for Shikoku?

3 days minimum for Takamatsu + Naoshima/Teshima + a day in Iya Valley. A week unlocks all four prefectures (Takamatsu → Iya Valley → Matsuyama → Kochi). Pilgrims walking the 88 temples need 30-60 days; bus tours condense to 10.

Can I do Shikoku without a car?

Yes for Takamatsu, Matsuyama, Kochi (all on the JR network) and the art islands (ferries). For Iya Valley, the Oboke gorge is reachable by JR + tour bus, but the deeper kazura-bashi vine bridges essentially need a rental car or a local guided tour.

Best base in Shikoku?

Takamatsu for art-island day trips and Sanuki udon. Matsuyama for Dogo Onsen and a real working castle. Most international visitors who try Shikoku do a 3-night Takamatsu base; serious island-trippers add a Matsuyama leg.

Is Shikoku worth visiting if I only have 2 weeks for Japan?

If you’re focused on Tokyo/Kyoto/Hiroshima, Shikoku adds 3-4 days and is best as a Naoshima art-island extension. If you want lesser-visited Japan and have 2 weeks, dropping Hiroshima for Shikoku gives you something most travellers miss.