On the infrequent occasions when they swim in oceanic waters, grey reef sharks often associate with marine mammals or large pelagic fishes, such as sailfish (Istiophorus platypterus). There is an account of around 25 grey reef sharks following a large pod of bottlenose dolphins (Tursiops sp.), along with 25 silky sharks (C. falciformis) and a single silvertip shark.[13] Rainbow runners (Elagatis bipinnulata) have been observed rubbing against grey reef sharks, using the sharks' rough skin to scrape off parasites.[14]
Reef sandals have always blended the cool kids and casual dude attitude of the beach with a commitment to nurturing the lifestyle that follows. Reef is further defined by the elite class of athletes that represent Reef around the world, as well as their loyal base of Reef aficionados who identify with Reef's unique blend of surf, sensuality and irreverent sensibility. Yes, all of those words. At the core of the Reef sandals are authentic, stylish and comfort designed products that have been worn by millions of Reefers around the world since Reef originated in 1984.

A reef is a bar of rock, sand, coral or similar material, lying beneath the surface of water. Many reefs result from abiotic processes (i.e. deposition of sand, wave erosion planing down rock outcrops, and other natural processes), but the best known reefs are the coral reefs of tropical waters developed through biotic processes dominated by corals and coralline algae.
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