Obstacle Warrior Kids The Woodlands is calling all Lil Ninjas! If your child is between the ages of 3 and 5 years old, he or she is invited to the Lil Ninja Class. This class meets on Tuesdays and Wednesdays from 5-6 p.m. and Saturdays from 9-10 a.m. 

Registration is required at least a day in advance. 

Cost: $21.65 per child