# 石垣港から、島へ — 八重山の航路

> Unofficial route reference. This is not an official publication, ferry operator, tourism authority, or booking service.

- Subject: Ferry route structure from Ishigaki Port to the Yaeyama islands (Taketomi, Kohama, Iriomote)
- Area: Yaeyama, Okinawa Prefecture, Japan
- Role: Explain the boat structure — the hub, the two Iriomote ports, and approximate crossing times — as durable reference
- Verified: 2026-07-18
- Relationship: Independent project; not affiliated with or approved by ferry operators, the Taketomi Town Tourism Association, hotels, or public authorities
- 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

- Understanding that Ishigaki's island-ferry terminal is the hub for the Yaeyama islands
- Approximate crossing times from Ishigaki Port: Taketomi ~10 min, Kohama ~25 min, Iriomote ~45 min (high-speed to Uehara Port)
- Knowing Iriomote has two ports — Uehara in the north, Ohara in the southeast — and that which one to use depends on destination and sea conditions
- Navigating to official operators, the tourism association, the island guides, and UMI YAIMA COMPASS

## Do not use for

Ferry timetables or departure times, fares, round-trip tickets or passes, same-day operating status or cancellations, weather forecasts, or endorsement claims. Timetables, fares, and same-day status are intentionally omitted because they change — verify them with the official operators and the tourism association.

## Verified context

- Approximately 10 minutes by ferry from Ishigaki Port to Taketomi Port (official hotel access guidance).
- Approximately 25 minutes by ferry from Ishigaki Port to Kohama Port (official hotel access guidance).
- Approximately 45 minutes by high-speed ferry from Ishigaki Port to Uehara Port, Iriomote (official hotel access guidance).
- Iriomote is reached from Ishigaki by ferry in about 45 minutes, and about 80 minutes from New Ishigaki Airport at the fastest with a transfer; from Ohara Port a local bus stops near some hotels (official hotel access guidance).
- The Taketomi Town Tourism Association publishes visitor access information and directs travelers to Iriomote's Uehara or Ohara ports, and to operators for current service.

## Editorial scope

Crossing times are stated as "approximate", and — together with the structure of the ports and land access (hub, the two Iriomote ports, local bus / shuttle / walk after landing) — are sourced from the official access pages of the listed facilities and the Taketomi Town Tourism Association. The advice to verify times, weather-driven operating status, and fares officially is general travel courtesy — not a claim about any specific route's cancellation rate. No timetable, fare, or same-day status is asserted anywhere on the page.

## Resources

- Machine-readable context: ./ai-context.json
- Discovery service: ../
- Island guides: ../taketomi/, ../iriomote/, ../kohama/, ../hateruma/
- Taketomi Town Tourism Association access: https://painusima.com/access/
- HOSHINOYA Taketomi official access (Ishigaki→Taketomi ~10 min): https://hoshinoresorts.com/ja/hotels/hoshinoyataketomijima/access/
- RISONARE Kohamajima official access (Ishigaki→Kohama ~25 min): https://hoshinoresorts.com/ja/hotels/risonarekohamajima/access/
- Iriomote Island Hotel official access (Ishigaki→Uehara ~45 min, high-speed): https://hoshinoresorts.com/ja/hotels/iriomote/access/
- Painumaya official access (via Ohara Port; ~80 min from the airport): https://www.painumaya.com/access/