Built for Wonder. Rooted in Nature.

At CK Nature Play, we are California's most trusted boulder playground builder, creating nature-inspired climbing spaces that challenge children, encourage imagination, and withstand years of public and commercial use.

✓

CSLB Licensed

Contractor Lic. #1067489

✓

40+ Years

Division of CK Landscape

✓

CPSI Certified

Playground Safety Inspector on Staff

✓

Bay Area & Northern CA

Dedicated Nature Play Specialists

Boulder Playground Builder California

At CK Nature Play, we install boulder playgrounds made of durable, high-quality materials that can withstand all seasons and weather while maintaining the appearance and feel of a natural outdoor landscape.

Our boulder playground equipment is designed to resemble natural rock formations while meeting all playground safety requirements. Each structure is carefully designed to provide safe climbing surfaces, appropriate fall height considerations, and adequate safety zones around every element.

We ensure that all configurations are ASTM-compliant and integrate seamlessly with approved surfacing systems, so your playground meets regulatory requirements from the start. Beyond safety, our boulder playground provides significant developmental benefits to children of all ages. These aren't just engaging features; they're tools that help every child grow and develop normally.

These boulder playground climbing structures go far beyond safety and durability. They are visually appealing additions that transform a standard play area into a fun, nature-themed environment. CK Nature Play provides boulder playground equipment that is consistently safe, durable, and enjoyable for children.

Three children playing on a wooden playground structure outdoors, surrounded by a black metal fence, with apartment buildings in the background.
Decorative outdoor wall featuring stacked firewood held behind wire fencing with wooden framed hexagon and square-shaped shelves.
Four children playing on a large wooden playground structure in a park, with modern residential buildings in the background.
Outdoor playground area with wooden play structures on a corkeen surface, enclosed by a wooden fence and surrounded by houses and trees under a clear blue sky.
Two workers cutting tree logs with handheld power saws constructing a natural playground, some logs are stacked upright and others lay flat on the ground.

Building Strong Play Spaces Together With Families

CK Nature Play is first and foremost a construction and installation firm — a dedicated division of CK Landscape, the company Gary Cartwright founded over 40 years ago and that his son Alex has grown up in, worked in, and now carries forward.

We build structural timber elements, boulder groupings, engineered surfacing systems, water play features, outdoor learning environments, and ADA-accessible site features. We understand soils, foundations, drainage, anchoring, and durability — and we build environments that last.

Alex Cartwright, CEO of CK Nature Play, smiling, wearing a white polo shirt with a logo, outdoors on grass

Alex is personally involved in every CK Nature Play project — from initial site review through post-installation inspection.

Alex Cartwright — Founder, CK Nature Play

Children's outdoor playground with tree logs for seating, chalkboards with drawings, and sandbox toys.
A young child wearing a teal shirt and strawberry-patterned pajama pants is climbing over a large wooden log at an indoor play area with wooden structures and a black and wood-framed window in the background.
Two children with blurred faces playing with chalk on ground outside, behind a wooden fence with chalkboard signs, one with a colorful drawing of a flower and sun.

Our boulder playground structures blend seamlessly into nature-themed playgrounds, enhancing the overall design and creating an engaging space for kids of all ages. At CK Nature Play, our playground contractor incorporates the wonders of the outdoors into every child's playtime. Our natural-looking boulders enhance the aesthetics of your playground while providing high-quality play equipment designed for both beauty and functionality.

For decades, we have been shaping the future of play, and every design we create reflects our passion for providing children with thrilling, meaningful play experiences. If you're ready to add a boulder playground to your California space, contact our team at CK Nature Play today. We are here to help you with every step of the process, from design to installation.

Contact Our California Boulder Playground Contractors

A gloved hand smoothing corkeen surface with a flat, metal trowel.
Wooden blocks casting shadows on a corkeen surface with a green tree, cars, and buildings in the background.
Close-up of a textured surface made of small, irregularly shaped, brown granules that make up the safe sustainable material Corkeen.

Helpful Information About Our Boulder Playground Installation Across California

What materials are used in your boulder playground equipment?

Our boulder playground equipment is made from weather-resistant materials like glass fiber reinforced concrete (GFRC) and high-quality composite resins. These materials were chosen because they can withstand heavy use, harsh weather conditions, and UV exposure for many years.

Are Boulder playground structures safe for schools and parks?

Yes, playground boulder structures are designed for safety in schools, parks, and public recreation areas. Our natural playground contractors design climbing boulders with proper safety zones, appropriate fall-height planning, and playground-friendly surfaces to encourage safe and active outdoor play for children of all ages.

Can boulder playground equipment be added to an existing playground?

Absolutely. Boulder playground equipment is one of the most versatile additions you can make to your existing play area. Our structures can be installed on prepared surfaces and integrated into existing playground layouts without requiring a full redesign. CK Nature Play integrates with your existing layout and surfacing system to create a smooth, safe, and visually cohesive experience.

Let's Build Something That Matters.

A line of wooden tree stump stools and slices arranged outdoors on a sandy and textured surface, with a building wall and shadows in the background.

At CK Nature Play, we also offer flexible boulder playground solutions for schools and daycares of various sizes and budgets. From small play areas to large community playground projects, we assist you in creating enjoyable spaces for children, families, and community activities.

A backyard with trees, a wooden deck with stumps, and various fenced play areas, shaded by large green trees on a sunny day with a blue sky.
An outdoor play area with tree stump seating, large wooden posts, a sandbox, and a chalkboard wall, with children and adults present.
An outdoor pet or play area with a wooden structure, various toys, plants, and a sandbox. The ground is covered with wood chips, and the space is enclosed by wooden fencing.
A playground with wood and rope climbing structures, a shaded canopy, trees, and a chain-link fence under a clear blue sky.