Banco de Afuera is a renowned diving site located off the coast of Argentina, near Mar del Plata. This underwater bank is a popular destination for scuba divers seeking diverse marine life and unique geological formations. Banco de Afuera is teeming with a wide variety of marine life, including: Fish: Sea bass, grouper, snapper, and various species of rays. Invertebrates: Sponges, anemones, and colorful corals. Larger marine creatures: Occasionally, divers may encounter seals, sea lions, and even whales.