Kabira Bay guide: Glass-bottom boats and swimming and snorkeling restrictions

Learn which activities are allowed around Ishigaki's Kabira Bay, including glass-bottom boats and its swimming and snorkeling bans, plus bus options from the airport.

Last checked:

  • 沖繩
  • 石垣島
  • Independent travel

Kabira Bay () is an important scenic coastal destination on Ishigaki Island, but it is different from an ordinary swimming beach. Official Okinawa tourism information explicitly prohibits swimming and snorkeling on beaches near Kabira Bay, while describing ways to observe the underwater scenery from a glass-bottom boat. Based on official pages checked on 29 October 2026, this article separates activities that can be planned, those that are prohibited, and those requiring further checks, and summarizes the transport entry points. For other attractions, start with the Ishigaki Island travel guide.

Key points

  • Kabira Bay is known for white sand, coastal scenery, coral, and underwater views. Official information describes glass-bottom boats as a way to see marine life.
  • Swimming and snorkeling are prohibited on beaches near Kabira Bay. Do not apply the rules of other Ishigaki beaches here.
  • To travel towards Kabira Park (), official Ishigaki Airport information directs visitors to check bus route 11 or transfer at the bus terminal.
  • Tamatorizaki Observatory, Hirakubozaki Lighthouse, and Oganzaki Lighthouse are other scenic locations described officially for Ishigaki; they can be compared by activity type.
  • Check boat departure times, fares, and operation details separately. This article does not assume fixed figures.

Kabira Bay: Distinguishing sightseeing, boat rides, and entering the water

Activity What official information says How to plan
Admire the coastline Kabira Bay is known for its seawater, white sand, and island views Plan it as sightseeing, separate from activities in the water
Glass-bottom boat Official information describes boat trips to see coral and tropical fish Check operating hours and available departures before travelling
Beach swimming Swimming is prohibited on beaches near Kabira Bay Do not list it as a swimming beach
Snorkeling Snorkeling is prohibited on beaches near Kabira Bay Do not assume a glass-bottom boat destination allows unrestricted snorkeling

The key question is not whether the bay contains marine life but how visitors are officially permitted to view it. A glass-bottom boat provides a view underwater, which is different from entering the water independently.

Comparison with other viewpoints on Ishigaki Island

Not every attraction on Ishigaki Island is focused on the same marine activities. The official tourism guide also lists Tamatorizaki Observatory, Hirakubozaki Lighthouse, and Oganzaki Lighthouse. For those not planning to enter the water, these can be compared as places for land-based scenic views.

Attraction Officially described theme Difference from Kabira Bay
Kabira Bay Coastal scenery, coral, tropical fish, and glass-bottom boats Underwater views are possible from a boat, but swimming and snorkeling are banned on nearby beaches
Tamatorizaki Observatory () Views of the sea from land Primarily a viewpoint; no water activities are inferred here
Hirakubozaki Lighthouse () Lighthouse and sea views Compare land scenery with Kabira Bay’s glass-bottom boats
Oganzaki Lighthouse () Coastal views around a lighthouse A scenic viewpoint is not assumed to be a swimming beach

The categories in this table help identify types of activities; they are not an attraction ranking. No ticketing, opening, or admission rules are supplied for facilities where they have not been verified.

Travelling towards Kabira from New Ishigaki Airport

Official airport information lists a bus option towards Kabira Park: route 11, the Yonehara Campground Line (), or a transfer at the bus terminal. This helps determine whether a transfer may be needed, but a route number alone does not guarantee arrival at a particular time.

Starting point Confirmed public transport direction Check before departure
New Ishigaki Airport () Check route 11 towards Kabira Park Current departures and applicable dates
Bus terminal Check connecting buses towards Kabira Transfer location and connection time

If you also plan to visit Ishigaki Port Remote Islands Terminal on the same day, check the airport-to-city and city-to-Kabira journeys separately. For more detail, see the Ishigaki Island transport guide.

How to choose: By activity, not popularity

What you want to do Does Kabira Bay match official information? Other planning direction
Photograph and enjoy the sea views Yes, it matches the sightseeing theme Compare other island observatories and lighthouses
View underwater coral from a boat Yes, glass-bottom boats are described Check same-day sailing and ticket information
Swim from the shore No. Swimming is prohibited on nearby beaches Check each other beach’s swimming rules
Snorkel near Kabira Bay No. Snorkeling is prohibited on nearby beaches Check the rules and safety information applicable to other waters

A reminder

The bans on swimming and snorkeling at Kabira Bay must not be ignored just because the sea looks calm, coral is visible, or sightseeing boats are operating. Transport, boat services, and site rules may change. Check the relevant official information before departure.

Further reading

Sources