Just off the coast of Jeffreys Bay, South Africa, the cold Benguela current from the South Atlantic collides with the warm, tropical Agulhas current which runs runs down the East coast of the African continent. Where they collide offshore, they drop all of the treasure they're carrying and it all washes up on the beach in a big colourful strandline of shells and corals. It's hard not to pick some of it up every now and then when walking to and from working or surfing.
