The Kerkrade gym Channarong Gym has received the Quality Mark of Martial Arts Authority. received. The gym meets all the requirements set by the Dutch Martial Arts Authority in the the field of health, safety and rules of conduct. Manon Demarteau's gym provides lessons in kickboxing for adults and youngsters of all levels. From inexperienced beginners to (upcoming) top athletes train in the same gym, all with their own ambitions.