Warriors Martial Arts/Knee High Ninjas Derby Reviews Home / Reviews / Warriors Martial Arts/Knee High Ninjas Reviews / Warriors Martial Arts/Knee High Ninjas Derby Reviews Contact Details Lynton St Derby DE22 3RW UK 07917 704403 Opening Hours Monday 06:30-19:30 Tuesday 19:15-20:15 Wednesday 19:00-20:00 Thursday 18:45-19:45 Friday closed Saturday closed Sunday 15:30-16:30