Photo: Guía de Isora Ayuntamiento.
Updated 3pm: Guía de Isora Ayuntamiento has said that the spill is being dispersed by the current as time passes, and so the bay is open to bathers again. The smaller beach, Playa Chica, will remain closed temporarily, however, as a preventative measure.
Original post 6 August: Guía de Isora Ayuntamiento has closed Playa San Juan beach because of a diesel spill thought to have come from a a boat outside the harbour, with the oil mark on the water being brough in on the tide. The red flag has been raised on the beach and the public are asked to follow the instructions of lifeguards and pay attention to any information signs and warning flags. Mayor Pedro Martín said this morning that the usual protocol has been activated and although it seems that the spill did not originate in the harbour, the council would appreciate any information that would help identify those responsible.