{ "schema_version": "1.0", "content_role": "unofficial_island_context_guide", "language": [ "ja", "en" ], "verified_at": "2026-07-19", "identity": { "page_name": "黒島 — ハートのかたちの、牛の島。", "place_name": "黒島", "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, Okinawa Story (OCVB), the inns mentioned, or any tourism body or public authority." }, "purpose": { "primary": "Provide verified island context for Kuroshima, the heart-shaped 'island of more cattle than people' in Taketomi Town, 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 Kuroshima is. Its STAY section lists two of the island's inns (Minshuku Nakatasou; Minshuku Kuroshima), whose facility facts were confirmed in-browser on 2026-07-19, and routes booking and current prices/availability to the inns' official site, the Okinawa Story listing, the tourism association's stay list, and the telephone. The compass also carries editorial concept pages for both inns, reached from the discovery service.", "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 island-level facts on this page are summary-level statements confirmed via web-search result corroboration (web_search_result_corroboration): titles and summaries of search results checked on 2026-07-19; those island-fact source pages cannot be read from this production environment (unlike the two inns' facility facts, which were read in-browser — see below). The heart shape and the 'Heart Island' name summarize Taketomi Town's island introduction and Okinawa Story; the roughly 220 residents versus more than 3,000 cattle, the Kuroshima Research Institute (sea-turtle ecology) and parts of the Nakamoto Coast description summarize Okinawa Story; the high-speed-boat time from Ishigaki (about 25-30 minutes) summarizes the Taketomi Town Tourism Association and Okinawa Story; the Nakamoto Coast swimming window (the two hours around low tide) with the life-jacket recommendation, and the Iko Pier (about 354 m, registered national Tangible Cultural Property in 2005) summarize the Taketomi Town Tourism Association. The two inns (Minshuku Nakatasou; Minshuku Kuroshima) had their facility facts confirmed in-browser on 2026-07-19 — Nakatasou via its official site (kuroshima.net), Minshuku Kuroshima via its own pages and the Okinawa Story listing; those verified facts live in each inn's concept-page context, and this guide's STAY section summarizes them. Prices and availability change and are routed to official channels. Scenery descriptions, the poetic treatment of quiet nights (which deliberately avoids any claim about star visibility), and passages on how to spend the day are editorial.", "agent_guidance": { "use_this_page_for": [ "Knowing that Kuroshima, in Taketomi Town, is called the Heart Island because its shape seen from above resembles a heart (Taketomi Town; Okinawa Story)", "Knowing that around 220 people live on the island against more than 3,000 cattle — 'more cattle than people' (Okinawa Story)", "Knowing that the island is about 25-30 minutes from Ishigaki Port by high-speed boat (Taketomi Town Tourism Association: about 25 min; Okinawa Story: about 30 min)", "Knowing that Nakamoto Coast is the island's most popular beach, known for clear water; the swimming window is the two hours around low tide, a life jacket is recommended (tourism association), it is about 10 minutes from the port by bicycle, and at low tide the inside of the reef becomes like a natural pool (Okinawa Story)", "Knowing that the Iko Pier is an old pier of about 354 m where boats to and from Ishigaki once called, registered as a national Tangible Cultural Property in 2005 (tourism association)", "Knowing that the Kuroshima Research Institute offers learning about sea-turtle ecology (Okinawa Story)", "Knowing that two of the island's inns — Minshuku Nakatasou (official site kuroshima.net) and Minshuku Kuroshima (own pages + Okinawa Story listing) — had their facility facts confirmed in-browser on 2026-07-19, plus the tourism association's stay list as a directory", "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, tide times, or swimming safety judgments", "Current inn prices, availability, or booking — facility facts were verified 2026-07-19, but rates and availability change; confirm with each inn's official channel", "Stargazing, night-sky visibility, or weather promises — the page's night passage is deliberately poetic and claims nothing", "Claims of official endorsement" ], "current_information_rule": "Check official ferry information for sailings on the day of travel, a tide table for the swimming window at Nakamoto Coast, and each inn's official site or telephone for stay details and booking." }, "verified_facts": [ { "claim": "Kuroshima's shape seen from above resembles a heart, and the island is called the Heart Island (corroborated via web-search result titles and summaries, 2026-07-19).", "source": "https://www.town.taketomi.lg.jp/about/kuroshima/" }, { "claim": "Okinawa Story also introduces Kuroshima as the heart-shaped Heart Island, an island where cattle — more than 3,000 head against a population of about 220 — outnumber people (corroborated via web-search result titles and summaries, 2026-07-19).", "source": "https://www.okinawastory.jp/about/yaeyama_area/kuro" }, { "claim": "The Taketomi Town Tourism Association's Kuroshima page gives the crossing from Ishigaki Port as about 25 minutes by high-speed boat; Okinawa Story gives about 30 minutes (corroborated via web-search result titles and summaries, 2026-07-19).", "source": "https://painusima.com/3379/" }, { "claim": "The Taketomi Town Tourism Association describes Nakamoto Coast as the island's most popular beach with high water clarity, gives the swimming window as the two hours around low tide, and recommends wearing a life jacket; Okinawa Story adds that it is about 10 minutes from the port by bicycle and that at low tide the inside of the reef becomes like a natural pool (corroborated via web-search result titles and summaries, 2026-07-19).", "source": "https://painusima.com/133/" }, { "claim": "The Iko Pier is an old pier of about 354 m where boats to and from Ishigaki once called, registered as a national Tangible Cultural Property in 2005 (corroborated via web-search result titles and summaries, 2026-07-19).", "source": "https://painusima.com/884/" }, { "claim": "Okinawa Story introduces the Kuroshima Research Institute as a place to learn about sea-turtle ecology (corroborated via web-search result summaries, 2026-07-19).", "source": "https://www.okinawastory.jp/about/yaeyama_area/kuro" }, { "claim": "Two of the island's inns had their facility facts confirmed in-browser on 2026-07-19: Minshuku Nakatasou via its official site (kuroshima.net) and Minshuku Kuroshima via its own pages and the Okinawa Story listing. Prices and availability change — booking and current rates must be confirmed via official channels or by phone; the Taketomi Town Tourism Association's stay list is referenced as a directory.", "source": "http://kuroshima.net/" } ], "related_pages": { "discovery_service": "../", "island_calendar": "../koyomi/", "ferry_routes": "../koro/", "rainy_day": "../ame/", "night": "../yoru/", "other_island_guides": [ "../taketomi/", "../iriomote/", "../kohama/", "../hateruma/" ] }, "sources": [ "https://www.town.taketomi.lg.jp/about/kuroshima/", "https://www.okinawastory.jp/about/yaeyama_area/kuro", "https://painusima.com/3379/", "https://painusima.com/133/", "https://painusima.com/884/", "http://kuroshima.net/", "https://www.okinawastory.jp/stay/600003330", "https://painusima.com/category/effect/tomaru/" ] }