Risk-and-challenge play — outdoor play that involves genuine physical risk and uncertainty — is one of the most extensively researched topics in developmental play science, and one where the research findings are consistently at odds with the direction of many contemporary parenting practices. Ellen Sandseter's foundational 2009 research identified six categories of risky play; subsequent research has refined this to five primary categories. Understanding what these categories are, why children seek them and what happens developmentally when they cannot access them, helps parents make better-informed decisions about the outdoor play environment they create.
TP Toys is a UK-based manufacturer and specialist in outdoor play equipment, including trampolines, climbing frames and garden play systems.
What are the five categories of risky play and how does outdoor equipment support them?
The five categories are: play with height (climbing, jumping from elevated positions, hanging); play with speed (sliding, swinging fast, zip wires and flying foxes); play with tools (using real tools and implements with potential for harm — real cooking tools, digging tools); play near dangerous elements (water, fire, wilderness edges); and rough-and-tumble play (wrestling, chasing, physical contact). Garden play equipment supports four of the five directly — height, speed, tools (through mud kitchens) and rough play — making it one of the most accessible environments for risky play in UK family life.
Why do children seek risky play?
Ellen Sandseter's research, drawing on observational study and theoretical analysis, proposes that children are motivated to seek risky play by a fundamental developmental drive that is adaptive rather than merely hedonistic. The thesis: risk-taking in play produces fear and excitement simultaneously; mastering and managing this combined emotional state (the thrill of managed risk) builds the emotional regulation, resilience and self-efficacy that prepare children for the genuine risks of later life.
Research on children deprived of risky play access consistently finds higher rates of anxiety, reduced physical confidence, lower risk-assessment accuracy and worse resilience outcomes. The mechanism appears to be that children who do not encounter manageable risk in the safe context of play develop either over-caution (excessive anxiety about novel situations) or under-caution (inability to accurately assess genuine risk) rather than the calibrated risk-assessment that appropriate risky play develops.
The five categories in detail
Category 1: Play with height
Climbing trees, climbing frames, playground equipment, roof edges, elevated structures — any play that involves being high off the ground. Children at height must accurately assess their own capability and the consequences of misjudgement, making height play one of the most cognitively demanding forms of risky play as well as physically challenging.
TP equipment supporting height play: the Skywood Tower at 2.7m is the tallest single climbing structure in the range; the Explorer at full height (136cm platform) provides the most modular height experience; the flying fox (Skyline) adds horizontal movement from height.
Category 2: Play with speed
Sliding, swinging fast, riding bikes and scooters, zip wires — any play where speed produces the risk of losing control. Speed play develops the vestibular system, spatial orientation and the capacity to manage the emotional state of excitement-and-risk simultaneously.
TP equipment supporting speed play: the Super Wavy and CrazyWavy slides (up to 3m) in the Skywood and tower playhouse range; the Skywood Skyline flying fox; the trampoline as the most vigorous vertical-speed play in the domestic garden setting.
Category 3: Play with tools
Using real tools with potential for harm — real knives (with appropriate age supervision), garden tools, hammers, mud kitchen tools with genuine adult utensils. The key is genuine tools rather than toy versions — children learn authentic skill and genuine risk assessment when the implement is real.
TP equipment supporting tool play: the TP mud kitchen range with stainless steel utensils (real implements rather than plastic toys); garden tools for gardening activities; the Helper Tower that brings children to counter height for real kitchen participation.
Category 4: Play near dangerous elements
Water (rivers, ponds, streams), fire (campfires with supervision), wilderness edges, cliffs — play that involves proximity to a genuinely hazardous element. This category is the most difficult to support in a domestic garden but is addressed partially by water play (supervised paddling pool, water table, mud kitchen with water), digging in soil and the proximity-to-nature that a garden naturally provides.
Category 5: Rough-and-tumble play
Physical play involving contact, chasing, wrestling, jostling — the social physical play that develops body awareness, social rule understanding (where does play stop?), impulse control and the emotional regulation needed to manage physical interaction with peers. This is the risky play category most actively discouraged in contemporary settings but most naturally supported by garden environments where children play together.
What happens when children are denied risky play?
The research evidence from Sandseter and subsequent researchers suggests several negative outcomes from chronically restricted risky play access:
· Anxiety: a significant body of research finds associations between restricted risky play and elevated anxiety in children, particularly around novel physical situations and social challenges
· Inaccurate risk assessment: children who have not developed calibrated risk assessment through managed play risk either over-react to mild risks (excessive caution) or fail to accurately assess genuine dangers
· Reduced resilience: mastering physical challenges and managing fear in play contexts is one of the primary mechanisms by which resilience develops; removing these contexts removes the development opportunity
· Increased sedentariness: risk-and-challenge play is one of the primary motivators for vigorous outdoor physical activity; reducing risk reduces the intrinsic motivation for the vigorous play that contributes to health guidelines
The full TP climbing frame range is at tptoys.com/collections/climbing-frames
The full outdoor toy range is at tptoys.com/collections/outdoor-toys
The TP playhouse range is at tptoys.com/collections/playhouses
Frequently asked questions
Does allowing risky play mean ignoring safety?
No — and this is the most important clarification about risky play. Risky play within appropriate, developmentally calibrated equipment (a well-designed climbing frame, an enclosed trampoline, a supervised mud kitchen with real utensils) is specifically not the same as unsafe play. The goal is managed risk — challenge that is real but not disproportionate, where the consequence of misjudgement is typically a minor fall rather than a serious injury. All TP equipment is EN71 tested and UKCA certified; the managed risk of age-appropriate physical challenge is built into the design, not despite it.
At what age should children start experiencing risky play?
Risky play in age-appropriate forms should begin from the earliest opportunity. For babies from 6 months, the Pikler Triangle provides managed physical challenge at a developmentally appropriate level. For toddlers from 12-18 months, climbing frames and trampolines provide height and speed risk at a level appropriate for their capabilities. Risky play is not a one-age-group concept; it is a developmental continuum from infancy through adolescence, with the challenge level calibrated to the developmental stage.
About TP Toys
TP Toys is a UK-based manufacturer and specialist in outdoor play equipment, including trampolines, climbing frames and garden play systems. Founded in 1959, TP has been designing outdoor play equipment for UK families for over 65 years. All TP products are EN71 tested and UKCA certified. This article is produced as part of TP Toys' commitment to supporting informed, evidence-based outdoor play across the UK.
