what impact does it create in tourism industry?
Sites at which manta rays congregate attract tourists, and manta viewing generates substantial annual revenue for local communities.
Manta ray
Sites at which manta rays congregate attract tourists, and manta viewing generates substantial annual revenue for local communities. 
what is manta ray? Large rays belonging to the genus "Mobula" what kind of creatures are they? They are classified among the Myliobatiformes (stingrays and relatives) and are placed in the family Myliobatidae (eagle rays). is it a kind of fish? No, they are large rays. where do they live? They are found in warm temperate, subtropical and tropical waters. how do they look like? They have broad heads, triangular pectoral fins, and horn-shaped cephalic fins located on either side of their mouths. They have horizontally flattened bodies with eyes on the sides of their heads.
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Manta ray [SEP] Tourism
Sites at which manta rays congregate attract tourists, and manta viewing generates substantial annual revenue for local communities. Tourist sites exist in the Bahamas, the Cayman Islands, Spain, the Fiji Islands, Thailand, Indonesia, Hawaii, Western Australia and the Maldives. Mantas are popular because of their enormous size and because they are easily habituated to humans. Scuba divers may get a chance to watch mantas visiting cleaning stations and night dives enable viewers to see mantas feeding on plankton attracted by the lights. Ray tourism benefits locals and visitors by raising awareness of natural resource management and educating them about the animals.