This event is a unique triathlon competition that can be enjoyed with children. It takes place at Osaka's Nishikinohama Park, providing a perfect opportunity for the whole family to stay active outdoors. The spacious park has a dedicated triathlon course, ensuring that children can participate safely. Each section of the event is thoughtfully designed to allow participants to try different skills. It includes classical triathlon events such as swimming, biking, and running, which are highly challenging. Additionally, participants can enjoy a special aquatic competition known as 'Challenge Aquacross.' Participants will have the chance to experience special activities and prizes that can only be enjoyed here. It's an opportunity to spend an unparalleled day. We strongly encourage you to try the Challenge Aquacross. The time spent on the refreshing water will become one of your most cherished memories.