21 years have passed but we will never forget! Join the Leons Heroes Obstacle Course Race at Indiana Dunes National Park. Navigate the Shifting Sands of Time that represent the historic American conflicts. There will be 5K and 10K races. This race is 100% dedicated to all veterans and first responders. These races are open to everyone, from beginners to experts. The opening ceremony starts at 9:30 am and the event starts at 10:00 am. Registration is now open. Sign up today!