Big Rock Park

Sammamish, Washington

Based on cognitive science, Big Rock Park harnesses northwest ecology and geology into nature play activities that foster brain development, motor development, and improvements in attention, investigation and perception.

The result of a lively, interactive and intellectual design process, Big Rock Park Phase 1 fulfills a unique Cognitive Development program which utilizes contemporary scientific thought to identify ways that play, exploration and nature can stimulate and enhance age specific cognitive development.

On a site with puzzling glacial erratics and a multi-layered history, new play activities and explorations introduce movement through the landscape and contact with rock, wood, leaves and water in ways that stimulate curiosity and investigation into how our world is assembled.


Phase I Features:

  • Zipline

  • Hillslide

  • Earth mounds

  • Tunnel

  • Rock climber

  • Life-size human nest

  • Trails

  • Informal gathering spaces

  • Boardwalks

  • Improved Parking

  • Landscaping



City of Sammamish


Phase I - 2016


Services Provided

Landscape Architecture

Signage and Entry Design

Construction Observation




Seattle Daily Journal of Commerce

Big Rock Park adds nature play area


Parent Map magazine

Just Opened: Big Rock Park, a Nature Playscape and Adventure Playground in Sammamish


Sammamish Review

WATCH: Big Rock Park opens in Sammamish


Sammamish Review

PHOTOS: Big Rock Park opening day celebration in Sammamish


Issaquah-Sammamish Reporter

Big Rock Park to have natural playscapes, children’s zip line