And last but not least, we got lucky enough to see a Halo on our last day in Pulau Rawa (Malaysia). For those that only know the video game, a halo is "an optical phenomenon that appears near or around the Sun or Moon, and sometimes near other strong light sources such as street lights" (definition wikipedia). Apparently it is caused by ice crystals in cyrrus clouds (very high is the sky) that diffract the light into colors. And it gives this particular shape:

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