Iriomote-Ishigaki National Park

Okinawa · Iriomote-Ishigaki National Park

Bortle 2 · Pristine dark sky | Elevation 50m | SQM ~21.8 | Best view South

Japan’s first International Dark Sky Park, spread across the low-latitude Yaeyama islands. Open southern skies, the Milky Way, southern constellations and island conservation define the experience.

Galactic core tonight

🌌 Tonight the Milky Way core climbs to a shootable altitude around 21:04, sinks back near 03:44, and peaks around 23:34 at roughly 37° in the South.

Access

The park covers areas of Ishigaki, Iriomote and nearby islands. Night visits should respect ecology, local roads and guided-tour rules.

Facilities

Use island lodging, guided tours, beaches and viewpoints; remote sites require your own transport and careful lighting.

Best season

Spring to early summer for low Southern Cross attempts, summer to autumn for the Milky Way; avoid typhoons and rough marine weather.

See the nearby city's stargazing calendar

Bortle class and SQM are estimates for well-known sites, used to compare darkness — not on-site measurements.

Related tools: Taiwan Dark-Sky Map · Stargazing & Moon Viewing Score · Meteor Showers