I was whale watching in Hawaii and was lucky enough to see this myself. Captain said conditions looked good to see a green flash and I thought he was pulling my leg but sure enough it happened. It is 100x more impressive than suggested by the photos
Brilliant example (flash occurs at the 28 second mark): https://www.youtube.com/watch?v=nTen8-LmXfM
I was whale watching in Hawaii and was lucky enough to see this myself. Captain said conditions looked good to see a green flash and I thought he was pulling my leg but sure enough it happened. It is 100x more impressive than suggested by the photos