 This is one of Guyana's many precious ecosystems, a nesting area for giant turtles protected by a team of conservationists. Guyana's offshore oil is being pumped from the seabed some 200 kilometres from Shell Beach, but were there to be a disastrous spill, here is where it would have a devastating impact. And that is a 24-7 concern for conservationist Annette Arjuna.