Kabira Ishizaki Manta Scramble | Ishigaki Manta Mecca Complete Guide

Speaking of Ishigaki, it’s manta rays! The place that spread that image throughout Japan is Kabira Ishizaki Manta Scramble. This diving point located off Kabira Bay in northwestern Ishigaki boasts one of the world’s leading manta encounter rates, a special sea area that divers and snorkelers from home and abroad long for as “want to go at least once in a lifetime.”

As long as a boat can go out, the encounter rate is said to be about 90%, and if you’re lucky, 10 or more manta can appear in a single dive. Moreover, since the water depth is relatively shallow and the current calm, the greatest strength of this point is that it can be enjoyed widely from beginners to advanced divers.

What Is Kabira Ishizaki Manta Scramble

Kabira Ishizaki Manta Scramble is a diving point located about 1 km offshore of Kabira Bay in northwestern Ishigaki, a stone’s throw from Kabira Bay, which also shines with three Michelin stars. The name “Scramble” expresses that the encounter rate is so high that manta gather as if competing (scrambling).

On the wide reef spanning about 600 m east-west and about 200 m north-south, multiple manta “ne” (cleaning stations) are scattered, and where they’ll appear comes down to the guide’s experience and judgment. It’s truly the original, representative manta spot that spread Ishigaki’s manta image across all of Japan.

Basic data

Item	Details
Official name	Kabira Ishizaki Manta Scramble
Location	Northwestern Ishigaki, off Kabira Bay (Kabira, Ishigaki City, Okinawa)
Water depth	Around 10 m on average (max depth about 25 m)
Current	Almost none (can occasionally get strong)
Difficulty	Beginner–intermediate (snorkeling/intro diving possible too)
Manta encounter rate	About 90% on days a boat can go out
Best season	April–November (Sept–Oct especially is the peak in numbers)
From a Kabira-area shop	About 5–10 min by boat
From a town-area shop	About 45–60 min by boat

Why Manta Gather at Manta Scramble

“Why do manta gather this much here?” This is a question any diver wonders about. The key to that answer is the existence of cleaning stations.

How a cleaning station works

On the seabed of Kabira Ishizaki, “ne” (rocky reefs) rising from the sandy ground are scattered. On those reefs, cleaning fish called bluestreak cleaner wrasse live in abundance. To have these cleaning fish eat the parasites and grime on their body surface, manta perform “hovering,” slowly circling over the reefs again and again. Such places are “cleaning stations.”

At Kabira Ishizaki, untouched coral reef spreads out and cleaning fish live richly, so multiple high-quality cleaning stations form within a narrow range. When manta gather, small fish increase too; when small fish increase, manta gather even more. This virtuous cycle produces the world-leading encounter rate. Also, beyond cleaning, in autumn many manta gather for courtship behavior (the manta train) too, and particularly many individuals are observed during the breeding season.

Note that over 300 manta have been confirmed around Kabira Ishizaki, and individual identification is done by the black markings on each one’s belly (a pattern differing per individual). Manta with names per individual, like “Love” and “Hokuto,” visit this sea every year.

About Ishigaki’s manta, the “reef manta”

The manta living around Ishigaki are a type called the reef manta. There are two types of manta—the “giant oceanic manta” and the “reef manta”—and in 2009 they were found to be separate species.

Type	Body width	Habitat	Features
Giant oceanic manta	6–8 m	Open ocean	The world’s largest ray. Migrates the open ocean
Reef manta	3–5 m (max weight about 3 t)	Around tropical/subtropical coral reefs	White around the mouth. Lives around Ishigaki

The reef manta has a gentle, curious nature, and may approach divers without fear. However, it has a nervous side too, and when its path is obstructed or it’s startled, it leaves the spot at once. Observing quietly while observing the rules is the greatest trick to facing manta for a long time.

While observing manta, you may see a remora attached to its back or belly. Remora feed on manta’s leftovers and excrement, and sometimes you can even see them slip inside the manta’s belly—that symbiotic relationship is one of the highlights too.

Two Manta Points | The Difference Between Scramble and City

Kabira Ishizaki has two manta points: “Manta Scramble” and “Manta City (MCP).” Since each has different features, which one to go to is judged by the guide while watching the day’s sea conditions and the manta situation.

Point name	Water depth	Features	Observation style	Rule
Manta Scramble	Around 10 m on average (max 25 m)	Cleaning stations scattered across a wide reef. Where the manta appears depends on the guide’s skill	Search for manta while moving among the reefs with the guide	No specific vessel-number limit
Manta City (MCP)	Water depth 7–9 m (shallower)	Manta almost always come back to the main reef. Even with a long wait, they come close with high probability	Wait in front of the reef and greet the manta as they come	Up to 5 vessels at a time (manta-protection rule)

Because Manta Scramble has cleaning stations scattered over a wide range, experience and knowledge to read which reef the manta are on is needed. On the other hand, Manta City has shallow water and a habit of manta returning to the main reef, so a waiting style often lets you observe them reliably. From the standpoint of manta protection, only up to 5 vessels can enter at a time, so waiting may occur when crowded.

Options for Enjoying | Diving, Snorkeling, Intro Diving

“Is it a place you can’t enjoy without a diving license?”—we often hear this question. Rest assured. Kabira Ishizaki Manta Scramble is a point participants of various levels can join.

• Fun diving (license holders): search for manta while moving underwater with a guide. At a cleaning station, you can observe them up close and at length while holding onto the reef. The power of a manta passing overhead is exceptional
• Intro diving (no license): since an instructor accompanies you one-on-one, even the inexperienced can join. However, minimal neutral-buoyancy skill is needed, so you’re guided after a shop skill check
• Snorkeling: since manta swim at 5–10 m depth, you can observe them well even by snorkeling. It’s also said the range is wide and easy to observe. Wearing a life jacket or wetsuit is essential

In any case, solo participation isn’t possible. You always observe under the lead of a guide or instructor who knows the point thoroughly. Manta often swim at 5–10 m depth, and on days with good conditions they may approach within reach of your hand from the surface even while snorkeling.

Note that diving may create restrictions on boarding a flight the same day (due to decompression-sickness risk). Those considering joining on the last day of their trip can feel reassured choosing snorkeling.

The Best Season to Meet Manta

Let’s organize the season when you can meet manta at Kabira Ishizaki Manta Scramble and each one’s features. Manta live in this sea area year-round, but in winter when the north wind grows strong, days when a boat can’t go out to the point increase.

Period	Sea conditions	Manta situation	Recommendation
March–May	South wind starts to increase, the sea becomes stable	Numbers aren’t many, but days you can go to the point increase. For those who definitely want to go	★★★☆☆
June–August	South wind, stable weather. The highest probability of being able to go to the point	Encounter possible with high probability. Especially July–August has a high rate	★★★★☆
September–October	Typhoon season, but calm days are excellent conditions	Peak in numbers. A chance to see the manta train (courtship) or a grand dance	★★★★★
November–February	North wind strong, many days you can’t go to the point	Access to the Kabira area is difficult. Often switched to manta observation at Kuro Island or Aragusuku Island	★☆☆☆☆

For those who definitely want to meet manta, we recommend visiting in June–August, when the sea is stable and the probability of going to the point is high, and September–October, when numbers are highest. Especially September–October is the breeding season, and you may see the “manta train” of multiple males chasing a female, or a “grand dance” of 10 or more appearing at once.

Note that on Ishigaki, south wind blows on many days in summer and north wind in winter, and since the Kabira area is on the north side, on strongly north-windy days a boat can’t go to the point. Care is needed in the period when the seasonal wind called “kaachibai,” signaling the end of the rainy season, blows, as the sea tends to be rough then too.

Also, the 10:00–14:00 time slot is said to have a particularly high manta encounter rate. Choosing a tour that joins from the morning raises the chance of entering the point in the best time slot.

Manta Observation Rules and Cautions

In observing manta at Kabira Ishizaki Manta Scramble, there are rules you must absolutely observe. The Yaeyama Diving Association has set up a Manta Protection Committee and established concrete rules. These rules are essential not only to protect the manta, but to keep encountering manta at this place for generations to come.