Kawa Model in Occupational Therapy: The River Metaphor Explained with Examples
The Kawa model explained: water, river walls, rocks, driftwood and spaces, how to use it with clients, worked examples, and a free Kawa river worksheet.
Imagine your life as a river. Sometimes it flows freely; sometimes rocks block the way; sometimes the riverbanks narrow. That’s the simple, powerful idea behind the Kawa model (“kawa” means river in Japanese), one of the most visual and culturally responsive models in occupational therapy.
Where the Kawa model comes from
The Kawa model was developed by Michael Iwama, a Japanese-Canadian occupational therapist and scholar, with a group of Japanese occupational therapists. It was published in his 2006 book The Kawa Model: Culturally Relevant Occupational Therapy.
Iwama noticed that many OT models were built on Western ideas: the individual at the centre, independence and control as goals. In many cultures, people understand themselves through relationships with family, community and nature, and value harmony. The Kawa model was designed to fit these worldviews, and to let clients describe their lives in their own terms.
The components of the river
| River element | Japanese term | What it represents | Example |
|---|---|---|---|
| Water | Mizu | Life flow, energy and well-being | A full, fast river: life is going well. A trickle: life feels stuck. |
| River walls and bottom | Kawa no zokuheki and kawa no soko | The environment: especially the social context (family, friends, work, community) and physical surroundings | Supportive family widens the river; isolation narrows it |
| Rocks | Iwa | Life circumstances and problems that block the flow | Pain, illness, unemployment, grief |
| Driftwood | Ryuboku | Personal assets and liabilities: values, character, skills, resources | Faith, humour, savings (assets); stubbornness, debt (can be liabilities) |
| Spaces | Sukima | Gaps where water still flows: opportunities for therapy | A friend who still visits, a hobby the person still enjoys |
How to use the Kawa model
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Explain the metaphor
Introduce the river idea in simple, culturally appropriate language.
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Draw the river
The client draws a cross-section of their river today (and sometimes along its length).
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Add elements
Rocks, driftwood, river walls and bottom, in the client's own words.
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Find the spaces
Where does water still flow? These are the openings for change.
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Set goals
Agree how to widen the spaces: reduce rocks, use driftwood, change the walls.
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Revisit
Redraw the river later to see how the flow has changed.
Questions to ask
- “What is your river like right now? Full, slow, blocked?”
- “What are the rocks in your life at the moment?”
- “What helps you, your driftwood: your strengths, beliefs, people, resources?”
- “Who and what make up the sides and bottom of your river?”
- “Where is the water still flowing? What would make the flow stronger?”
Worked examples
| Client | River elements | OT focus (spaces) |
|---|---|---|
| Ananya, 45, depression after job loss | Rocks: unemployment, low mood, finances. Walls: supportive sister, few friends. Driftwood: organised, faith, cooking skills. | Use cooking to rebuild routine; volunteer at a community kitchen; job-search plan with her sister's support |
| Mr Okafor, 70, after a stroke | Rocks: weak arm, fatigue, can't drive. Walls: wife, church community. Driftwood: determination, love of gardening. | Raised garden beds; church transport; graded arm practice through gardening |
| OT student reflecting on placement | Rocks: exam stress, travel time. Walls: supportive supervisor. Driftwood: curiosity, perfectionism. | Study plan, carpooling, setting 'good enough' standards |
Strengths and limitations
| Strengths | Limitations |
|---|---|
| Client-led and visual; easy to start a conversation | Metaphor may not suit everyone or every culture |
| Culturally responsive; respects relationships and harmony | Less structured than models with standardised assessments |
| Works with people who find talking about problems hard | Needs skilled facilitation to turn insight into goals |
| Useful for reflection, teams and students too | Research base is growing but limited |
Kawa vs other models
| Kawa | PEO | MOHO | |
|---|---|---|---|
| View of the person | Inseparable from environment and community | Interacts with environment and occupation | Volition, habituation, performance capacity |
| Main tool | The client's own river drawing | Analysis of person–environment–occupation fit | Standardised interviews and observations |
| Goal | Increase life flow and harmony | Improve fit for occupational performance | Occupational identity and competence |
Quick self-check
0 / 3 correct
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In the Kawa model, driftwood (ryuboku) represents…
Show answer
C. Driftwood stands for personal attributes and resources, which can help or hinder flow.
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Where does the OT focus intervention in the Kawa model?
Show answer
B. Spaces are where life still flows, and where therapy can increase the flow.
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Who developed the Kawa model?
Show answer
A. Michael Iwama and Japanese occupational therapists developed it; Iwama published it in 2006.
Summary
The Kawa model sees life as a river, with water as life flow, the riverbed and walls as the environment, rocks as problems, driftwood as assets and liabilities, and spaces as opportunities. Clients draw and describe their own river, making it a powerful, culturally responsive tool for understanding what matters and setting goals. Read more about OT models of practice and the Model of Human Occupation.
References
- Iwama MK. The Kawa Model: Culturally Relevant Occupational Therapy. Churchill Livingstone; 2006.
- Iwama MK, Thomson NA, Macdonald RM. The Kawa model: the power of culturally responsive occupational therapy. Disability and Rehabilitation. 2009;31(14):1125–1135.
- The Kawa Model (official website).
- Boyt Schell BA, Gillen G, eds. Willard and Spackman’s Occupational Therapy. Wolters Kluwer.
Frequently asked questions
What is the Kawa model in occupational therapy?
What are the components of the Kawa model?
How do you use the Kawa model with a client?
Who developed the Kawa model?
Why is the Kawa model culturally relevant?
Written by
Payal Mehta, OT
Payal Mehta is a practising occupational therapist and co-founder of Occupational Therapy OT. She writes on pediatrics, sensory integration, and mental-health practice.
All articles by Payal →This article is for general education and is not a substitute for individualized assessment or treatment by a licensed occupational therapist. Always seek the guidance of a qualified professional for specific concerns.
