Have you ever seen the movie “Pirates of the Caribbean: At World’s End”? And do you remember how was captain Jack Sparrow saved from the underworld? Just jumped to the world after a green flash… Well, this is based on a real phenomenon, even if not visible every day. Actually, it’s very rare and you need great air conditions and also perfect view to the sea horizon. Then you can witness by something like this. Occasionally is possible to capture the green flash caused by the atmospheric bending or refraction of sunlight. But even more rare is the blue one. For that is needed very clear atmosphere to avoid scattering and diminishing the refracted blue sunlight above horizon. As I could capture that from Rarotonga, Cook Islands, on 4th September 2014. It was even better than last time from Hot Water Beach, Coromandel Peninsula. Used Canon 6D, Tamron 70-300 mm @ 300 mm, f6,7, ISO 200, 9×1/750 s.