# 波照間島 — 果ての、うるまへ。

> Unofficial island context guide. This is not an official publication, tourism authority, or ferry operator, and this project has no accommodation page for Hateruma.

- Subject: Hateruma Island — Japan's southernmost inhabited island: Nishihama beach, the southernmost monument at Takanazaki, star-filled nights (with the observation tower honestly noted as closed), and the Mushaama rite
- Area: Taketomi Town, Okinawa Prefecture, Japan
- Role: Provide verified island context before a traveler decides how to spend a day or a night on Hateruma
- Verified: 2026-07-18 (via web-search result titles and summaries; pages themselves not readable from this environment)
- Relationship: Independent project; not affiliated with or approved by Okinawa Prefecture, Taketomi Town, the tourism association, Anei Kankou, or any public authority
- Language: HTML page is Japanese (canonical) with an 8-language UI layer (ja/en/zh/ko/fr/ru/id/ms via ?lang=); this file and the JSON context are written in English by design, for machine consumption

## Use for

- Hateruma, in Taketomi Town, is Japan's southernmost inhabited island; its name is reported to derive from "the coral (uruma) at the end"
- Nishihama (Kitahama) on the north side is the island's signature beach as introduced by the tourism association — not a supervised designated swimming beach
- The monument of Japan's southernmost point stands at Takanazaki, where rough waves strike the cliffs
- The island's astronomical observation tower is CLOSED due to aging (Taketomi Town announcement; the association's page marks it closed) — do not describe it as open
- Mushaama, on the 14th day of the lunar 7th month (old-calendar Bon), is the island's largest rite — dates shift every year; confirm officially
- Anei Kankou operates the Ishigaki–Hateruma ferry and publishes the timetable; the open-sea route is weather-sensitive, so confirm sailings on the day, both ways
- This project has no lodging page for Hateruma; stay questions go to official and local guidance. Journey-time questions go to the island-time series: ../koyomi/ (when), ../koro/ (crossings), ../ame/ (rainy days), ../yoru/ (night)

## Do not use for

Current ferry schedules, fares or operation status; sea conditions or swimming-safety judgments; specific-year rite dates; any claim that the observation tower is open or predictions of reopening; stargazing or weather promises; hotel or lodging information; or endorsement claims.

## Editorial scope

Designation, place and rite statements summarize Taketomi Town, the Taketomi Town Tourism Association, and Anei Kankou (sources below), confirmed by 2026-07-18 via web-search result titles and summaries (summary-level confirmation). Scenery descriptions (including the common nickname "Hateruma blue", which this page avoids asserting as official), safety cautions, and passages on how to spend the day are editorial.

## Resources

- Machine-readable context: ./ai-context.json
- Discovery service: ../
- Island calendar: ../koyomi/
- Ferry routes: ../koro/
- Rainy day: ../ame/
- Night: ../yoru/
- Other island guides: ../taketomi/, ../iriomote/, ../kohama/
- Taketomi Town, Hateruma Island: https://www.town.taketomi.lg.jp/about/hateruma/
- Taketomi Town Tourism Association, Nishihama: https://painusima.com/913/
- Taketomi Town Tourism Association, the southernmost monument: https://painusima.com/934/
- Taketomi Town, Mushaama: https://www.town.taketomi.lg.jp/event/dento/1531288917/
- Taketomi Town, observation tower closure: https://www.town.taketomi.lg.jp/topics/1658889755/
- Taketomi Town Tourism Association, observation tower (closed): https://painusima.com/1009/
- Anei Kankou timetable (Ishigaki–Hateruma): https://aneikankou.co.jp/timetable/detail/6