No worries about permanently colored clothing – Havlíček says they are using clothing-safe colors and recommends simply washing them the same day. Or just wear old clothes. For spectators not wanting to be hued, they should be able to remain color-free. The race is held at Nemocnice Bohnice and detailed information on how to get there will be emailed to all registered participants. Following the race there will be a kids zone with activities, a culture program, music and other active stuff happening. Registration costs 500 CZK for adults, 450 CZK if you are part of a team. Kids aged 6-14 are 250 CZK. You’ll need three friends to make a team (minimum number is four racers) but there’s no maximum, so invite everyone you know. All registered racers get a starter pack containing your number, a color packet, sunglasses, bracelet and other surprises.