Japan
34°05′N 132°41′E
Bōyo Islands
防予諸島
The Bōyo Islands (防予諸島, Bōyo-shotō or Hōyo-shotō) are a group of 41 islands that belong to Yamaguchi and Ehime Prefectures in the Inland Sea. The largest by far is Suō-Ōshima, or Yashiro Island.

Chart
Overview
The Bōyo Islands (防予諸島, Bōyo-shotō or Hōyo-shotō) are a group of 41 islands that belong to Yamaguchi and Ehime Prefectures in the Inland Sea. The largest by far is Suō-Ōshima, or Yashiro Island.
From Wikipedia, CC BY-SA 4.0
Census, cataloged
- Major islands6
- Minor islands37
- Islets83
- Rocks & skerries377
Major islands
Suō Ōshima
- Area
- 129 km²
- High point
- 691 m
Nakashima
- Area
- 21.2 km²
- High point
- 296 m
Nagashima
- Area
- 13.7 km²
- High point
- 313 m
Gogo Island
- Area
- 8.5 km²
- High point
- 282 m
Iwaishima
- Area
- 7.7 km²
- High point
- 365 m
Iwai Island (祝島, Iwai-shima) is an island of the Inland Sea in Japan. With a total altitude of 82 m, it lies at the south-eastern edge of the Yamaguchi Prefecture (山口県, Yamaguchi-ken) at coordinates 33°46′48.00″N 131°58′12.00″E.
Heigun Island
- Area
- 16.6 km²
- High point
- 468 m
Minor islands
Nuwa Island
- Area
- 4.7 km²
- High point
- 206 m

Yashima
- Area
- 4.2 km²
- High point
- 288 m

Muzuki Island
- Area
- 3.8 km²
- High point
- 198 m

Hashira Island
- Area
- 3 km²
- High point
- 295 m
Tsuwajijima
- Area
- 2.8 km²
- High point
- 163 m

Ukashima
- Area
- 2.3 km²
- High point
- 167 m
Futagami Island
- Area
- 2.1 km²
- High point
- 184 m
Ushima
- Area
- 1.9 km²
- High point
- 154 m
Sago jima
- Area
- 1.3 km²
- High point
- 121 m

Maejima
- Area
- 1.1 km²
- High point
- 125 m
Nasakejima
- Area
- 0.98 km²
- High point
- 148 m

Okikamurojima
- Area
- 0.96 km²
- High point
- 164 m

Kasasajima
- Area
- 0.9 km²
- High point
- 119 m

Nogutsuna Island
- Area
- 0.88 km²
- High point
- 96 m
Umashima
- Area
- 0.75 km²
- High point
- 107 m

Hashima Island
- Area
- 0.7 km²
- High point
- 135 m
Kakezujima
- Area
- 0.69 km²
- High point
- 208 m
Yurijima
- Area
- 0.68 km²
- High point
- 193 m
大水無瀬島
- Area
- 0.65 km²
- High point
- 234 m
片島
- Area
- 0.61 km²
- High point
- 216 m
Kashira Island
- Area
- 0.55 km²
- High point
- 87 m
Kuroshima Island
- Area
- 0.54 km²
- High point
- 121 m

Tsurushima
- Area
- 0.52 km²
- High point
- 151 m
Shimoninaijima
- Area
- 0.33 km²
- High point
- 110 m
Unnamed island
- Area
- 0.32 km²
- High point
- 90 m
Hashirajima Island
- Area
- 0.31 km²
- High point
- 94 m
Teshima Island
- Area
- 0.3 km²
- High point
- 93 m
Moroshima Island
- Area
- 0.22 km²
- High point
- 115 m
Amata Jima
- Area
- 0.22 km²
- High point
- 65 m
小水無瀬島
- Area
- 0.2 km²
- High point
- 123 m
Tatsu Shima
- Area
- 0.19 km²
- High point
- 88 m
Uwa Shima
- Area
- 0.17 km²
- High point
- 86 m
Kamininaijima
- Area
- 0.15 km²
- High point
- 115 m
Kashima Island
- Area
- 0.14 km²
- High point
- 115 m
Tsuzukijima Island
- Area
- 0.1 km²
- High point
- 43 m
Kurakake Island
- Area
- 0.1 km²
- High point
- 68 m
笹島
- Area
- 0.1 km²
- High point
- 77 m
Rocks & skerries
On the chart above, at its closest zooms.
Listing 43 of 503; the rest are on the chart.
Figures
Comparative heights
To the same scale
Islands by area
| Suō Ōshima | 129 km² |
| Nakashima | 21.2 km² |
| Heigun Island | 16.6 km² |
| Nagashima | 13.7 km² |
| Gogo Island | 8.5 km² |
| Iwaishima | 7.7 km² |
| Nuwa Island | 4.7 km² |
| Yashima | 4.2 km² |
| Muzuki Island | 3.8 km² |
| Hashira Island | 3 km² |
| Tsuwajijima | 2.8 km² |
| Ukashima | 2.3 km² |
| Futagami Island | 2.1 km² |
| Ushima | 1.9 km² |
| Sago jima | 1.3 km² |
| Maejima | 1.1 km² |
| Nasakejima | 0.98 km² |
| Okikamurojima | 0.96 km² |
| Kasasajima | 0.9 km² |
| Nogutsuna Island | 0.88 km² |
| Umashima | 0.75 km² |
| Hashima Island | 0.7 km² |
| Kakezujima | 0.69 km² |
| Yurijima | 0.68 km² |
| 大水無瀬島 | 0.65 km² |
| 片島 | 0.61 km² |
| Kashira Island | 0.55 km² |
| Kuroshima Island | 0.54 km² |
| Tsurushima | 0.52 km² |
| Shimoninaijima | 0.33 km² |
| Unnamed island | 0.32 km² |
| Hashirajima Island | 0.31 km² |
| Teshima Island | 0.3 km² |
| Moroshima Island | 0.22 km² |
| Amata Jima | 0.22 km² |
| 小水無瀬島 | 0.2 km² |
| Tatsu Shima | 0.19 km² |
| Uwa Shima | 0.17 km² |
| Kamininaijima | 0.15 km² |
| Kashima Island | 0.14 km² |
| Tsuzukijima Island | 0.1 km² |
| Kurakake Island | 0.1 km² |
| 笹島 | 0.1 km² |
Groups within
Photographs

山口県上関町長島の上関原子力発電所計画地と祝島 Nagashima-Island & Iwaishima-Island in Japan.
Gogo-shima island view from Kyōgamori

愛媛県松山市中島の大浦港近くのアミアゲビーチの堤防。釣りスポットとして知られる(らしい)。
Sources
Facts
Photographs
- Tanoura iwaishima. BrackWorry / Public domain
- Gogoshima 01. Reggaeman / CC BY-SA 3.0
- Amiage- Beach. melvil / CC BY-SA 4.0