Decathlon and IWKA WingTjun martial arts event Post author:kungfumaster Post published:November 28, 2018 Post category:xmas team dinner Productive day at Decathlon in Slough, introducing people to IWKA WingTjun. You Might Also Like 2018 Monthly Instructor Training October October 19, 2018 2018 IWKA Summer Camp November 14, 2018 We have 4 UK Seminars each year and our Summer Camp in Italy – September. November 16, 2018