No preparation necessary for our smallish garden with a nice flat grassed area and attractive scented borders, a couple of comfy benches to sit on under a shady tree. Throw in a few footballs and a ride in car and they're good to go. Very tame.
Now a visit to Grandad's allotment, just a short walk up the path, calls for a full H & S inspection by Nanna Maggie before they're allowed anywhere near, then intense supervision throughout! Water butts, coldframes, a big old glass greenhouse, wires and trellises supporting the produce,a vast array of old garden tools, wobbly-wheeled wheelbarrows, a cobwebby shed, a shaky boardwalk to totter about on, berries to pick from prickly bushes, the allotment dog as well as the occasional hedgehog, rat or fox... They absolutely love it!