Behavioural Therapy and Family Support Services

Individual and group-based interventions rooted in the principles of Applied Behaviour Analysis.

Children Playing

Sea to Sky Behaviour and Learning offers programs that target key skills in language and communication, social skills, self regulation, play skills, functional life skills, academics and literacy. Interventions can also include behaviour support plans to address challenging behaviours. 


Sea to Sky Behaviour and Learning was founded in 2020 with the goal of providing a wide range of exemplary services for children with special needs and their families within the entire Sea to Sky Corridor. We believe that every child deserves the opportunity to reach their full potential. Understanding that each child is unique, we are committed to providing high quality, individualized services based on evidence-based practices. We celebrate each and every success with our kids and their families, and love seeing them learn and grow. We strive to make a positive impact on the lives of our families and community.

Our Staff


Sylvia Hunter, M.Ed., BCBA

Lead Behaviour Analyst

I love working with children and young people, and truly value their unique energy and perspectives on life. I have worked with children aged 2-18 with Autism and developmental disabilities for 15 years. I am passionate about helping families and kids learn and grow in ways that are meaningful to them and will improve their quality of life.

I am a Board Certified Behaviour Analyst (BCBA) and I have a Masters in Education in Special Education from UBC as well as Bachelor of Science in Psychology from University of Ulster in Northern Ireland. I am on the Registry of Autism Providers (RASP) in BC. I provide early intervention services as well as services for school aged children. I love teaching through play and using my creativity to come up with fun and engaging learning activities for kids that are rooted in evidence-based practices.
I am particularly interested in social and emotional learning in kids, and firmly believe that children will learn and grow to be their best if they can manage emotions and feelings and form meaningful relationships with others. I have experience running PEERS and Children’s Friendship Training Programs, as well as training in social thinking. I have also engaged in ongoing training in Acceptance and Commitment Training as a means of supporting children and young people with anxiety and other social-emotional challenges.  

I live in Squamish with my partner Dan, our kids Rylan and Evie and our dog Rue. We are so grateful to be a part of this amazing community. Our family loves getting out for hikes and bike rides and enjoy all the amazing things Squamish has to offer.   


I love working with children. I enjoy finding that spark in each individual. I have been working with children ages 2-18 since graduating from York University in 2009. I have worked as a Youth Working in treatment foster care, as an Early Childhood Educator, and as an Educational Assistant in the school system. I found my passion was working with children with developmental disabilities and complex needs. I decided to specialize in Autism and found work as a behaviour interventionist.

I am working toward my BCaBA certification (Board Certified assistant Behaviour Analyst). I graduated in June 2020 from Capilano University from the Applied Behaviour Analysis-Autism program.

I have lived in the Sea to Sky corridor since 2011. I currently live in Squamish with my husband Mike and our dog Mylee. We enjoy skiing, biking and hiking. We are grateful to live in this wonderful community.

Melissa Lenz

Senior Behaviour Interventionist

Kim Wiersma.png

I am a Registered Social Worker with a Master of Social Work specializing in Clinical Counselling from the University of Calgary, and a Bachelor of Kinesiology with a Minor in Psychology from the University of British Columbia. I am licensed through the British Columbia College of Social Workers (BCCSW) and am governed by the BCCSW Code of Ethics and Standards of Practice.

I have a passion for helping youth and young adults overcome whatever obstacles they may be facing and I value collaborating with young people to foster their strengths and resiliency. I am experienced as a Counsellor for adolescents and have worked in mental health and supportive roles for individuals with developmental disabilities for over ten years.  I offer a reassuring and calm presence to those seeking support and I primarily draw from Strength-Based and Acceptance and Commitment Therapy (ACT) principles in my counselling practice.


I live in Squamish and my other passions are art, music, reading, and spending time outside in nature.

Kim Wiersma

Counsellor and Registered Social Worker


Behaviour analysis refers to the science of behaviour - anything that a person does that can be observed. Some examples of behaviour include answering the phone, turning of the alarm clock or waving goodbye. Applied Behaviour Analysis (ABA) is the application of behaviour analytic (learning) methods as validated by scientific research to socially significant behaviours. These behaviours may include language and communication, social skills, emotional regulation and adaptive life skills such as toileting, eating and sleep. Behaviour analysts are primarily concerned with understanding the environment in which a behaviour occurs by looking at the events that occur both before (antecedent) and after (consequences) a behaviour, in an effort to understand why a behaviour is happening. Positive consequences (reinforcement) is provided to teach important new skills, while no reinforcement is provided for challenging behaviours, making these less likely to occur in future. While behaviour analysis is often used in treatment plans for individuals with disabilities, it is also prominent in a wide range of other fields including organizational business management, human resources, education, sports and the environment.