Local resident Andy Chow onboard a boat in the Matsu Islands witnessed the natural phenomenon that is sometimes referred to as ‘Sea Sparkle’.From about April to August of every year growing algae called Red Noctiluca emit light underneath the ocean and can be see from the surface as a blue light. Andy was extremely lucky to catch the light show as it doesn’t always appear. Credit: 周治孝Andy Chow via Storyful