Surf therapy is a structured therapeutic intervention that combines surf instruction with individual and group activities designed to promote psychological, physical, and psychosocial well-being. Defined formally by the International Surf Therapy Organization (ISTO) in 2019, it is used across clinical and health-promotion settings as a complement to — or component of — broader mental health and addiction treatment programs.

Research involving military veterans found that a ten-session surf therapy program produced statistically significant reductions in posttraumatic stress, depression, and anxiety, with improvements retained at seven-month follow-up. A 2025 San Diego State University study of veterans with PTSD found that all participants showed marked improvement in physical and mental health during surf therapy activities. Despite growing use, the evidence base remains developing — current research is limited by small sample sizes, and more large-scale randomized controlled trials are needed to establish standard protocols.

Key Takeaways:

• Surf therapy integrates surfing with structured psychological and psychosocial support — it is not recreational surfing.
• The three primary mechanisms of benefit are community, physical exercise, and immersion in a natural blue space environment.
• Research supports improvements in depression, anxiety, PTSD symptoms, self-esteem, social connectedness, and resilience across diverse populations.
• Surf therapy is used with veterans, youth, people in addiction recovery, individuals with autism, and those with physical disabilities.
• A 2019 study of U.S. active duty service members found significant reductions in depression and anxiety following a six-week surf therapy program.
• In a 2024 RCT with veterans who had PTSD and major depressive disorder, 58% achieved remission after six weeks of surf or hike therapy.
• Surf therapy functions as a holistic, adjunctive intervention — it is most effective when integrated into a broader clinical treatment plan.

What is the Definition of Surf Therapy

Surf therapy is a structured intervention that combines surf instruction or surfing activity with individual and/or group therapeutic activities to promote physical, psychological, and psychosocial outcomes. According to the International Surf Therapy Organization (ISTO), the defining elements are surfing, a therapeutic structure, and measurable clinical or wellness goals — distinguishing it from recreational surfing or general outdoor activity.

In clinical settings, surf therapy is delivered by or in coordination with licensed mental health professionals, occupational therapists, physical therapists, or social workers who integrate their clinical expertise into the ocean-based program. Non-clinical programs may be run through health-promotion frameworks by trained instructors with surf-specific therapeutic training. The key distinction between surf therapy and recreational surfing is that surf therapy is intentionally structured around therapeutic goals — skill development, psychological processing, social integration, and outcome measurement.

The principal mediators of surf therapy benefit are identified in the research as three interconnected elements:

• Community — shared experience in a group context builds social connection, belonging, and peer accountability
• Physical exercise — surfing provides full-body cardiovascular and muscular engagement that drives endorphin release and neurological recovery
• Blue space environment — immersion in the natural ocean environment produces distinct sensory and psychological effects not replicated in indoor settings

The Science Behind Blue Space and Mental Health

Blue space — a term describing natural environments dominated by water, including oceans, rivers, and lakes — produces measurable psychological benefits that form a foundational mechanism of surf therapy. Proximity to and immersion in blue space environments is associated with reduced psychological distress, lower cortisol levels, and improved overall well-being.

The ocean provides a multisensory environment that engages the entire sensory system: the sound of waves, the temperature and pressure of water, the smell of salt air, and the visual expanse of open water all activate the parasympathetic nervous system — the physiological braking system that reduces stress arousal and promotes calm. Research cited in PsyPost describes this process as supporting “blue mind,” a form of mindful embodiment that facilitates repair of the mind-body connection disrupted by trauma and chronic stress.

The rhythmic bilateral stimulation created by wave movement shares functional similarities with techniques used in EMDR therapy, which is a primary evidence-based treatment for trauma and PTSD. Negative ions present in sea air have also been studied for their potential to influence serotonin levels, though these findings are still preliminary. Spending a minimum of 120 minutes per week in natural environments is associated with significantly better health and well-being outcomes, according to research published in Scientific Reports (White et al., 2019).

Mental Health Benefits of Surf Therapy

Surf therapy’s mental health benefits span multiple psychological domains and have been studied across clinical and at-risk populations. The largest quantitative study of surf therapy to date — a nonrandomized controlled longitudinal study of 116 Australian Defence Force members — found statistically significant reductions in posttraumatic stress, depression, and anxiety following a ten-session program, with improvements retained at seven-month follow-up (ScienceDirect, 2024).

Key mental health benefits associated with surf therapy include:

• Depression reduction — physical activity stimulates endorphin and serotonin release; ocean immersion and social connection reinforce mood recovery
• Anxiety reduction — the parasympathetic activation produced by blue space environments and rhythmic wave exposure reduces physiological stress arousal
• PTSD symptom reduction — surf therapy demands present-moment focus and graduated exposure to perceived risk, both of which are active therapeutic mechanisms in trauma recovery
• Improved sleep — physical exertion, cortisol reduction, and nervous system regulation support restorative sleep, which is impaired in both PTSD and addiction recovery
• Enhanced self-esteem and self-efficacy — mastering a physically demanding skill in a supportive environment builds confidence that transfers to other recovery challenges
• Resilience development — falling and returning to the board creates repeated behavioral evidence that setbacks are survivable and manageable

A pilot RCT on children and adolescents with mental health disorders found reductions in symptoms of depression (effect size 0.57), anxiety (effect size 0.43), emotional problems (effect size 0.79), and peer problems (effect size 0.56) following a six-week surf therapy program (ScienceDirect, 2022).

Psychosocial Benefits of Surf Therapy

The psychosocial dimension of surf therapy is one of its most consistently documented benefit areas across the research literature. Addiction and trauma both produce social isolation, fractured relationships, and compromised interpersonal skills — all of which surf therapy directly targets through its group-based, community-centered structure.

A 2017 study on surf therapy for 48 children and adolescents in foster care found improvements in social skills, interpersonal relationships, emotional regulation, time management, and problem-solving skills. A 2021 study on Australian at-risk youth found similar improvements in social connectedness alongside self-esteem, resilience, and depressive symptoms following an eight-week surf therapy program. The group learning environment creates shared challenges, mutual encouragement, and interpersonal bonds — particularly valuable for individuals whose substance use or trauma history has eroded their social support networks.

Psychosocial benefits associated with surf therapy include:

• Social connectedness — shared experience in the water builds interpersonal bonds between participants with similar backgrounds and challenges
• Reduced isolation — ocean-based group activity creates a non-clinical, peer-supported context that is less stigmatizing than traditional therapeutic settings
• Improved emotional regulation — managing the demands of surfing in real-time builds tolerance for frustration, discomfort, and uncertainty
• Sense of belonging and community — participants consistently report feeling part of something larger than themselves, which research links to increased meaning and well-being

Who Can Benefit from Surf Therapy

Surf therapy has been studied and implemented across a wide range of populations. Its transdiagnostic design — meaning it is not condition-specific — makes it applicable across multiple presenting concerns within a single program cohort.

Populations for whom surf therapy evidence exists include:

• Veterans and active duty military with PTSD, major depressive disorder, and combat-related trauma
• At-risk children and adolescents with depression, anxiety, behavioral disorders, and emotional difficulties
• Individuals in addiction recovery using surf therapy as a healthy coping strategy, stress management tool, and social reconnection modality
• People with autism spectrum disorder for whom the ocean’s sensory environment, wetsuit pressure, and rhythmic wave activity provides calming, regulating input
• Youth in foster care with emotional dysregulation and disrupted social development
• Individuals with physical disabilities through adaptive surf therapy programs using specialized equipment

According to Psychology Today, benefits have been documented for people with physical disabilities, visual impairment, neurodiversity, substance use disorders, and severe trauma histories — making surf therapy one of the more broadly applicable holistic modalities in current clinical use.

Surf Therapy in Addiction Recovery

Surf therapy addresses several neurological and behavioral mechanisms that are specifically relevant to addiction recovery. Physical exercise — of which surfing is a vigorous, full-body form — stimulates dopamine and endorphin production, partially compensating for the disrupted reward circuitry that substance use produces. This provides individuals in recovery with a natural, embodied experience of pleasure that does not involve substances.

The ocean environment also functions as a trigger-free alternative space — physically and psychologically removed from the environments, people, and routines associated with drug or alcohol use. Developing mastery of a challenging new skill builds self-efficacy, which is one of the strongest predictors of sustained sobriety. The social structure of surf therapy programs creates peer accountability and community connection, reducing the isolation and social vulnerability that frequently drives relapse. According to Nexus Recovery Services, surf therapy is incorporated into dual-diagnosis addiction treatment programs specifically because it addresses emotional regulation, stress management, and neurological healing simultaneously.

Surf Therapy vs. Traditional Therapy: How They Compare

Surf therapy is not a replacement for evidence-based clinical treatment. It is most effective when integrated into a comprehensive treatment plan that includes CBT, medication management where appropriate, trauma-focused therapies, and peer support. Its primary role is complementary — it extends the reach of treatment into physical, social, and environmental domains that traditional talk therapy does not address.

Compared to traditional indoor therapy, surf therapy offers distinct advantages for specific populations:

• Lower perceived stigma — a non-clinical outdoor setting reduces barriers for individuals resistant to conventional therapy
• Physical co-engagement — exercise-induced neurological benefits occur during the session, not just through cognitive processing
• Embodied trauma processing — the physical demands of ocean immersion can facilitate access to somatic experiences that trauma disrupts
• Social context — group learning in a shared challenge environment builds social skills and connection in real-time rather than through simulation

Its limitations include geographic access requirements, financial cost, weather and ocean condition variability, and the need for ongoing structured support to maintain gains after program completion.

Summary

Surf therapy is a structured, evidence-supported holistic intervention that uses surfing, ocean immersion, and group therapeutic activities to improve mental health, reduce trauma symptoms, build social connection, and support addiction recovery — functioning most effectively as a complement to comprehensive clinical treatment.

At Worthy Wellness Center in Carlsbad, California — located just miles from the Pacific Ocean — holistic therapies including surf therapy are integrated into individualized addiction and mental health treatment programs for women. If you or someone you care about is in recovery and interested in holistic treatment options, Worthy Wellness Center can help.

Sources:

• International Surf Therapy Organization (ISTO) — Definition of Surf Therapy, 2019
• ScienceDirect — Long-term Effect of Surf Therapy on PTSD, Depression, and Anxiety in Australian Defence Force Members (2024)
• ScienceDirect — Surf Therapy: Pilot Randomised Control Trial for Children and Adolescents (2022)
• PMC / BMC Complementary Medicine — Surf Therapy Systematic Review (2024)
• PMC — Surf Therapy: Australian Youth Qualitative and Quantitative Research
• Psychology Today — Surf Therapy for PTSD Recovery (2026)
• SDSU News — Surfing Eases Symptoms of PTSD (2025)
• White et al. (2019) — Spending at Least 120 Minutes a Week in Nature — Scientific Reports