Introduction: Climbing is a movement where we move upwards with the help of our limbs. Climbing firstly represents a mean for overcoming obstacles and later a part of the game. Around the age of 6, when children are capable of wall climbing, it even becomes a leisure activity. Due to increasing popularity, the circle of users has widened, including children with autism spectrum disorder. They typically show lack of motivation for occupation, their spectrum of interests is narrower and also sensory difficulties hinder their participation in activities. Purpose: The purpose of this thesis is to show the development of the volition of children with autism spectrum disorder for climbing, and to determine which sensory features impede or support the child in engaging in climbing activities. Methods: A multiple case study has been used involving children between the ages of 5 and 13 who have an austim spectrum disorder and an associated intellectual disability. Treatments were analysed using the Pediatric Volitional Questionnaire, and the Short Sensory Profile was used to assess sensory characteristics. Results: The level of volition development remained at the same level during treatment for all users. We were able to detect a slight improvement in volition at the level of research and competence in all, but the behavioural items of the Pediatric Volitional Questionnaire were not rated higher than “included”. All users have marked differences in tactile sensibility and energy levels. All users had distinct variations in the sum of all categories. Discussion and conclusion: In addition to the low motivation, inherent to autism spectrum disorder, they are limited in participation due to sensory problems, especially tactile hyperresponsivity, and low energy levels. Their understanding of the instructions and awareness of their capabilities are questionable due to the associated intellectual disability. Sensory disorders mostly inhibit participation, but among children who are seeking vestibular and proprioceptive stimuli, it encourages it. Although most users are not motivated to climb, they have shown some satisfaction in preparatory activities.