| Guideline | KOSERT* (2014) | Eco-experience & study, 5 Sensory P**, Static P (Making, etc.), Physical P, Adventure P, Meeting & Resting activity. | Nature S***(eco-biotop etc.), Play S (Natural looseparts S etc.), Adventure S (Mounding, Tunnel, etc.), Open S (Rest S, communication S, etc.) |
| Korea Forest Service (2008, 2014) | Sensory E****(barefoot program, etc.), Physical E (rope P, etc.), Creativity E (Making with natural looseparts, etc.), Natural knowledge E (Kitchen garden, etc.), Ecological E (Observation aquatic life, etc.) | Water play S, Soil play S, Rope play S, Creative play S (Natural looseparts S, Communication S, Balance facility, Indian house, etc.), Barefoot experience S |
| Moore, R. (2017) | Pathways, Plants, Natural surfacing, Natural loose parts, Natural construction, Natural play structures, Multipurpose lawns, Meadows, Woodland, Landform, Animals, Aquatics, Sand, Soil, Dirt, Gathering, Program Base & Storage, Signage, Boundaries |
| Davis et al. (2009) | Climbing, Sliding, Swinging, Balancing, Digging, Running, Hiding, Walking, Pushing, Pulling, Jumping, Cooking, Singing, Seeking, Knowing, Playing, Throwing, Building, Making, Touching, Tasting, Seeing, Swimming, etc. | Water S, Sand S, Plants and vegetation S, Trees and climbing S, Grass S, Tree trunks, logs, boulders and hard landscaping S, Impact absorbing surfacing S, Loose-fill surfacing S, Landform S (existing modelling, mounds, hills), Mud and digging patches S |
| Linden and Barbarasch (2012) | Physical P (Climbing, Swinging, Sliding, Balancing, chasing, Running, Hide and-seek, etc.), Exploratory P, Construction and destruction P, Creative P with loose materials, Social interaction P, Imagination and ‘playing pretend’, Quiet Contemplation and solitude P | Exploratory topography S (Mounds, etc.), Small pieces S (Tree cookies, etc), Loose materials S (Leaves, etc.), Sensory Awareness S (Taste gardens, etc), Different Types of Vegetation (Wild areas, Native plants, etc.) Resting/quiet spots S, Places for first-hand interaction S (Frog ponds, ect.), Things to show change S (Rain collection ponds, etc.), Outdoor art S (Wall murals, etc.), Physical challenges S (Balance beams, ect.), Opportunities to learn and teach S (Amphitheaters, etc.) |
| Precedent research | Kang et al. (2016, 2017) | Cognitive P (Functional, Constructive, Symbolic, Game on role), Other P (Observation, Chat, Rough wrestling P, Non-P (Moving, ect.)), Social P (Solo, parallel, Group) | Study room (cum shelter), Play facility S (Sand S, Facility playground, Deck S, Carpentry playground, Resting facility, Open S, Planting S), water S (eco-pond, valley etc.), Forest trail, Playground, Forest S |
| Choi and Byun (2006) | Cognitive P (Functional, Constructive, Symbolic, Game on role), Other P (Observation, Chat, Rough wrestling P, Chasing game), Non-P (Non-participation, Onlooker behavior, Change, Aggressive behavior) | Physical play A*****, Unstructured & Dramatic play A. (Symbolic & Construct play A. etc.), Rest A, Natural exploration A (Animals & Plants observation, etc.), Adventure play A |
| Park and Park (2008) | Forest play activity types: Climbing, Creeping, Rope P, Hanging, Boarding, Swing, Tunnel P, Water P, Sliding, Seesaw P, Pulling, Sand P, Making, Building, Playing family, Hide and seek P, Kicking ball, Puzzle P, Throwing ball, Growing a garden & animal, Sitting, Drawing, Solving maze, Driving P |