Some 6,000 participants glowing neon on Saturday, adding to the colour at the fourth Illumi Run held at Sentosa's Palawan Green. Participants were doused in glow-in-the-dark paint as they ran and danced through the night. One of the highlights was a 30m-long inflatable Glow Slide, where participants were soaked in glow water, which illuminates under ultraviolet light. The event, held for the first time on the beach, also included other features such as neon bubbles, psychedelic rainbow light displays and a neon rain shower.