{
  "schema_version": "1.0",
  "content_role": "unofficial_island_context_guide",
  "language": [
    "ja",
    "en"
  ],
  "verified_at": "2026-07-18",
  "identity": {
    "page_name": "波照間島 — 果ての、うるまへ。",
    "place_name": "波照間島",
    "place_type": "Island",
    "administrative_area": "沖縄県八重山郡竹富町",
    "relationship": "This independent project is not affiliated with, commissioned by, or approved by Okinawa Prefecture, Taketomi Town, the Taketomi Town Tourism Association, Anei Kankou, or any tourism body or public authority."
  },
  "purpose": {
    "primary": "Provide verified island context for Hateruma, Japan's southernmost inhabited island, before a traveler decides how to spend a day (or a night) there.",
    "relationship_to_compass": "UMI YAIMA COMPASS helps travelers discover a direction; this page explains what Hateruma is. Unlike the other island guides, there is no accommodation concept page for Hateruma in this project — the page says so explicitly and routes stay questions to official and local guidance.",
    "relationship_to_series": "The page routes time-of-journey questions to the island-time series: the island calendar (../koyomi/) for when, the ferry-route page (../koro/) for crossings, the rainy-day page (../ame/) and the night page (../yoru/) for the day itself."
  },
  "editorial_scope_note": "The statements on 'Japan's southernmost inhabited island', the name's reported origin (hate-no-uruma, 'the coral at the end') and the island's scenery of old house rows and sugarcane fields summarize Taketomi Town's island introduction; the southernmost monument at Takanazaki and Nishihama summarize the Taketomi Town Tourism Association; the Mushaama description summarizes Taketomi Town's rite pages; the observation tower's closure summarizes Taketomi Town's announcement and the association's 'closed' marking; the ferry route summarizes Anei Kankou's timetable page. All confirmed by 2026-07-18, in part via web-search result titles and summaries (summary-level confirmation; the pages themselves cannot be read from this production environment). 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.",
  "agent_guidance": {
    "use_this_page_for": [
      "Knowing that Hateruma, in Taketomi Town, is Japan's southernmost inhabited island, with a name reported to derive from 'the coral (uruma) at the end'",
      "Knowing that Nishihama (Kitahama) on the island's north side is the island's signature beach as introduced by the tourism association, and is not a supervised designated swimming beach",
      "Knowing that the monument of Japan's southernmost point stands at Takanazaki, where rough waves strike the cliffs",
      "Knowing that 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",
      "Knowing that Mushaama, on the 14th day of the lunar 7th month, is the island's largest rite, honoring ancestors and praying for harvests and safety",
      "Knowing that Anei Kankou operates the Ishigaki–Hateruma ferry route and publishes its timetable; the open-sea route is weather-sensitive, so same-day official confirmation is essential",
      "Navigating to the other island guides, the island-time series pages, and UMI YAIMA COMPASS"
    ],
    "do_not_use_this_page_for": [
      "Current ferry schedules, fares, or operation status",
      "Current sea conditions, swimming safety judgments, or beach supervision status",
      "Specific-year dates for Mushaama or any rite",
      "Any claim that the observation tower is open, or predictions of its reopening",
      "Stargazing or weather promises",
      "Hotel or lodging information — this project has no accommodation page for Hateruma",
      "Claims of official endorsement"
    ],
    "current_information_rule": "Check Anei Kankou for sailings on the day of travel, Taketomi Town and the tourism association for rites and facility status, and official sources for sea conditions."
  },
  "verified_facts": [
    {
      "claim": "Taketomi Town's island introduction describes Hateruma as Japan's southernmost inhabited island, an island of old house rows and sugarcane fields, whose name is said to derive from 'hate no uruma' — the coral at the end (corroborated via web-search result summaries, 2026-07-18).",
      "source": "https://www.town.taketomi.lg.jp/about/hateruma/"
    },
    {
      "claim": "The Taketomi Town Tourism Association publishes a page introducing Nishihama (Kitahama); reports describe it as the island's representative beach on the north side, not a supervised designated swimming beach (corroborated via web-search result titles and summaries, 2026-07-18).",
      "source": "https://painusima.com/913/"
    },
    {
      "claim": "The Taketomi Town Tourism Association describes the monument of Japan's southernmost point at Takanazaki, where rough waves strike the cliffs (corroborated via web-search result summaries, 2026-07-18).",
      "source": "https://painusima.com/934/"
    },
    {
      "claim": "Taketomi Town describes Mushaama, held during the old-calendar Bon on the 14th day of the lunar 7th month, as the island's largest rite, honoring ancestors and praying for harvests and safety, with a procession led by the Miruku deity (corroborated via web-search result summaries, 2026-07-18).",
      "source": "https://www.town.taketomi.lg.jp/event/dento/1531288917/"
    },
    {
      "claim": "Taketomi Town announced the closure of the Hateruma astronomical observation tower due to the marked aging of its building and equipment (corroborated via web-search result summaries, 2026-07-18).",
      "source": "https://www.town.taketomi.lg.jp/topics/1658889755/"
    },
    {
      "claim": "The Taketomi Town Tourism Association's page for the observation tower is titled with a 'closed' (休館中) marking, indicating the closure is current as of confirmation (corroborated via web-search result titles, 2026-07-18).",
      "source": "https://painusima.com/1009/"
    },
    {
      "claim": "Anei Kankou publishes a timetable page for the Ishigaki–Hateruma route (corroborated via web-search result titles, 2026-07-18). Sailing times, fares and operation status change — check on the day of travel. This page's description of the route as sensitive to sea conditions is an editorial caution consistent with the operator's same-day guidance.",
      "source": "https://aneikankou.co.jp/timetable/detail/6"
    }
  ],
  "related_pages": {
    "discovery_service": "../",
    "island_calendar": "../koyomi/",
    "ferry_routes": "../koro/",
    "rainy_day": "../ame/",
    "night": "../yoru/",
    "other_island_guides": [
      "../taketomi/",
      "../iriomote/",
      "../kohama/"
    ]
  },
  "sources": [
    "https://www.town.taketomi.lg.jp/about/hateruma/",
    "https://painusima.com/913/",
    "https://painusima.com/934/",
    "https://www.town.taketomi.lg.jp/event/dento/1531288917/",
    "https://www.town.taketomi.lg.jp/topics/1658889755/",
    "https://painusima.com/1009/",
    "https://aneikankou.co.jp/timetable/detail/6"
  ]
}