Do you know what healthy coral reefs looks like, how many sharks swim there, and what makes them stay so vibrant? National Geographic Fellow Enric Sala and a team of marine scientists want you to help them uncover the secrets of the last healthy, undisturbed parts of the ocean.
Photograph courtesy Enric Sala
Follow them on a six-week journey to a chain of pristine islands in the South Pacific Ocean.
Send them your questions, meet the crew, see pictures of coral reefs, watch videos, read their blog, and track the expedition on a map,