That is ash with the lye that comes from the Wooden about the Cham Islands which are all around 12 kilometers through the coast of Hoi An. Given that the village is situated along the coast, It's also possible to appreciate a fine sandy beach with no crowds. A must-visit. https://hoi-in-an27159.answerblogs.com/34998726/the-ultimate-guide-to-hoi-in-an