Giants of San Benedicto features Dr. Robert Rubin and his ground-breaking research of giant Mantas. You'll travel to the remote Socorro Islands off Mexico's Pacific coast and see breath-taking encounters with enormous manta rays. You're sure to love these majestic giants as you see how they invite human contact, and encourage certain divers to ride them. The film crew also travels to the Bahamas to visit 'Bubbles', a fifteen foot Manta in the worlds largest aquarium, and witness her release back into the ocean.