[Manta page]
Manta Ray
Despite their size, manta rays are usually graceful and tend to be tolerant with divers.
Manta Rays
San Benedicto Island, Mexico
Yap, Micronesia
Trinidad and Tobago 
Kona Coast, Hawaii

Manta rays were once called devil fish by sailors who saw large "horns" extending forward from their heads. These horns turned out to be ingenuous scoopers which, when unfurled, guide plankton into the manta’s mouth. Manta wingspans can reach up to 20 feet, and they glide though the water like birds. Both gentle and graceful, they have become a favorite attraction for divers. Their range is circumtropical, with sightings in the Atlantic from as far north as New England and south to Brazil. Mantas prefer plankton-rich waters and are regular visitors to a few select locations. In the winter, mantas visit San Benedicto Island, south of Cabo San Lucas, Mexico. Here, they glide past a pinnacle called The Boiler hoping to take advantage of the resident cleaner fish. Mantas also hang out in Yap, Micronesia at Manta Ridge, another cleaning station. From March through July, mantas visit the island of Tobago, feeding in the rich waters fed by the Orinoco estuary in South America. On Hawaii’s Kona Coast, mantas are drawn each evening to the lights of a large hotel. Night divers watch as the mantas feed on the plankton that is attracted by the lights. 

 

The fabled Manta ray (Manta hamiltoni), common in tropical waters from California to Peru, is also found in the Galápagos, especially around Floreana or Isabela. Though its span is usually between 12 and 14 feet, individuals of twice that size have been reported! Mantas eat plankton and small schooling fish found near the surface, and they have been seen leaping free of the water like breaching whales, possibly in pursuit of their food source.

Relatives


Few underwater sights are as compelling and mysterious as the silent sweep of a squadron of rays surveying their undersea domain. Their large pectoral fins enable them to "fly" through the waters with elegance, and while some rays have sharp tail spines and even poisonous stings, most are harmless. 

 Amazing - they fly under water!
  School of Rays
  292k video
In the Galapagos, snorkelers most often see the spotted eagle ray (Aetobatus narinari), which feeds on the mollusks of the sea floor as well as small octopuses, prawns, and worms. Eagle rays grow to over 7 feet in wingspan with a long slender tail giving it an almost equal length. Though they frequently are seen alone near the shore, groups of between 30 and 40 have been reported off Santa Fé island. 

Another frequently seen ray is the golden or mustard ray (Rhinoptera steindachneri), also known as the cow-nosed ray. The Galápagos species is the smallest in the world, only about two feet across, and most frequently encountered near shore or in lagoons, usually in small groups where they feed on mollusks. They also congregate in great schools of several hundred individuals, traveling with synchronous movements like the flight of birds. 

Sting rays (Urotrygon species) bury themselves in the sands of shallow waters, searching for and eating small mollusks and crustaceans. They are found in both Pacific and Atlantic waters on either side of North America. Though they are up to 3 feet in size, their coloration makes them difficult to see -- while their venomous sting makes the unwary wader remember to look twice in the future!


ALFRED'S MANTA RAY: "HAHALUA" (Manta Alfredi) a.k.a. Prince Alfred's Manta Ray. This Ray is a large species and quite closely resembles the other Manta Rays, with widened pectoral fins and the two horn-like cephalic fins projecting forward from the head on each side of the mouth and whip-like tail (no spine on tail). Its color is slate gray or black on the top side, and the lower surface has irregular black-gray markings and spots. These groups of markings make it easy to identify each individual. As in the photo above, the cephalic fins unfurl in the feeding mode. This Ray will often reach a width of at least twelve feet. In the photo below, the horn-like cephalic fins are projecting forward and furl up like a cork screw for high speed flight. They are named for Prince Alfred Ernest (1844-1900), the forth child of Queen Victoria of Great Britain. The name "Hahalua" is Hawaiian for Manta Ray.
(Shot taken by Jim Robinson with a Nikon RS with 20 to 35 mm lens, using Fuji 200 Provia film and Nikon SB-104 strobe. Camera settings: f8 at 125/TTL)


 
 
 

Where Mantas Roam


Dive Locations





MANTA RAY MADNESS (South of Kailua Pier at 8 miles, 25 minutes)Cool Manta Photo

For many years, there was a very special place, just at the entrance of Keauhou Bay: a very special rock to the Manta Rays, which served as a cleaning station. When the surface water traffic is light, these gentle giants pause over this rock and hang, barely moving. Suddenly, a few small fish rush from the rock and head for the Manta. I watched as these small fish started picking loose skin, algae and parasites off the Manta's body.
Then it happened on late afternoon. One of the Mantas found his way in front of the newly built Kona Surf Hotel on the southern point of Keauhou Bay. As the passed in front of the shadows of the lava cliffs, there was an abrupt enthusiastic glow directly in front of him. He came into contact with millions, tens of millions, of swarming plankton (thumbnail-sized larval fish, octopus, lobsters, and microscopic mysids, shrimp-like animals) in front of him. It was so incredible. All that food in one area. Why? It was not there prior to the last visit to that special rock. This glow, what was it? As he made one of his loops into that shaft of light collecting plankton, he noticed that strange glow was coming from above the surface of his water world. Loop after loop, he gathered his meal of plankton. This was too easy; he was full in about an hour. It would have taken a full day to collect that plankton by swimming the whole Kona Coast. "Got to tell my friends about this," I thought, and that's how the word got out.

I learned that the strange glow was emanating from the new set of flood lights which were constructed above the hotel's new shoreline salt water swimming pool for their guests. It also lit up the shoreline waters around the pool. All of this happened in the early 1970's.
Today, after much watching from the shoreline cliffs of the Kona Surf Hotel and diving with these gentle giants, we at Kona Coast Divers felt that there was a problem diving in the shadows of the cliffs and in shallow waters with depths of 5 to 10 feet. There was not enough room for the divers to observe the Mantas, especially when the surf is up. We were quite concerned for the divers' safety and the well-being of the Manta Rays trying to stay clear of the divers. They often collide with rocks causing injuries to themselves.
We must get the Mantas into deeper water, where there is more room for divers and Mantas. After much thinking, we came up with cordless, highly powered lights with over 500 watts, which were very costly. These light units are placed in a depth of 30-40 feet, which give the Manta Rays lots of room to feed. Our customers gather around the lights in a wide circle, as a swarm of plankton clouds around the lights. Then, out of nowhere, within the outer darkness, the slow-moving Mantas materialize. Your heart almost stops as you see this gentle giant come within inches of you, making endless slow loops in the shaft of light coming from our "Manta catchers" (the name we gave our underwater lights).

When you have had enough of the "Manta Ray Madness" there is a lot more to see, due to the profusion of food that these lights attract. Lots of other species of night feeding fish are found in the area. And if you have a camera with you, lots of great photos can be captured on film.

Since the Manta Ray Dive is rated one of the world's best dives, we would like to point out helpful information to keep this dive one of the world's best: