Pergola with (homemade, not mechanized) retractable canvas roof - Garden Chic
20 Truly Fascinating Pergolas For Real Enjoyment
Maybe an arbor? On west side of house making a step up to play area. Incorporating a swing and patio table Simon Fraser designed this unique outdoor space featuring an arbor incorporating a child's play space.
Curved path with Sea Sand bricks
Instead of a treehouse, build a DIY tree fort. Kids love multiple entrances and exits! - 10 DIY Tree Projects That Will Make You Say Wow (Kids Wood Crafts)
fence around pool - half the height, but use the wire frame for climbers. (have same steel wire veg garden - it's brilliant) Pergola trellis
Possibility for along rear side fence to block neighbours overlooking.
loves me a black pergola and paver patio surrounded by gardens and potted plants, vs grass .
garden with simple pergola-vertical grid for trailing plant 'wall'