Pick a Route Before You Pick a Prize

A successful treasure hunt is really just a walk around the garden with a story attached. Before you print a single clue, spend ten minutes outside working out where the hunt will go. Walk the route yourself, in the order the children will follow it, and make a note of each hiding place. A good rule of thumb is one clue for every two minutes you want the activity to last: eight to ten clues suits a small courtyard garden, while a long, rambling plot can easily take fifteen or more.

Plan the route as a loop rather than a straight line, so nobody has to double back past places they have already searched. Start somewhere calm, such as the back door or the end of the patio, where you can gather everyone and explain the rules. Finish at a spot that feels like a genuine destination: under the apple tree, inside the playhouse, or beside the shed. Keep the last clue close to the treasure itself so the finale does not fizzle out with a long walk.

Hide Clues Where Small Hands Can Reach

Clues do not need to be buried. In fact, buried clues are a recipe for tears and ruined grass. Tuck them where children can spot them with a little looking, and always at a height a five-year-old can manage without climbing.

• Behind the water butt or the recycling box
• Under the rim of a large plant pot, weighted down with a pebble
• Pegged to the washing line with a brightly coloured clothes peg
• Taped inside the shed door, at knee height
• Tucked into a wellington boot left by the back step
• Slotted into the slats of a garden bench or picnic table
• Inside the letterbox of a playhouse or the basket of a bike

If the grass is damp, pop each clue into a sealed freezer bag or laminate it, and use a marker pen that will not run. For pre-readers, chalk arrows on the patio or coloured ribbon tied to branches are far more useful than words, and they keep the pace up for everyone.

Write Clues That Match the Reader

The trick with clues is to mix the styles so that every child gets a moment of being the one who solves it. Rhymes work brilliantly for younger children because the answer often gives itself away. Something like “I hold the flowers and catch the rain, look for your clue where I fill up again” will have a six-year-old marching straight to the watering can.

For older children, move up a gear:

• A simple anagram, such as DEHS for the shed
• Backwards writing that has to be held up to a mirror
• A numbered code where each clue gives one letter of a final word
• A riddle with two possible answers, only one of which exists in your garden

Number the clues so you can check at a glance whether any have gone missing, and keep a master list of answers in your pocket. There is nothing worse than a hunt that stalls because the grown-up cannot remember where clue seven went.

Choose Treasure That Suits the Whole Crowd

The treasure does not have to be expensive, but it does need to be shared out fairly at the end. A decorated shoebox or a washing-up bowl lined with foil makes a perfectly good chest. Fill it with small, individually wrapped items: stickers, coloured pencils, marbles, temporary tattoos, hair bobbles, or a packet of seeds each child can plant afterwards.

Food treats work well, though keep chocolate out of a warm garden and avoid anything that could be a choking risk for toddlers. A share bag of sweets or biscuits, opened together at the end, saves a lot of squabbling. If you would rather avoid sugar, a certificate for the winning team and a cold drink in the shade go down just as well.

Adapt the Rules for Mixed Ages

Few gardens contain children of identical ages, so build in some flexibility. Colour-code the clues and split into mixed teams, with an older child as the official clue-reader and a younger one as the finder. Everyone then has a job.

• Staggered starts: give the youngest a two-minute head start
• Handicaps: older children must do ten star jumps or answer a maths question before collecting each clue
• Hint holders: an adult who can be asked one question per clue, no more
• Bonus clues: an extra easy one hidden low down so a toddler can find something independently

Make sure every team ends up with a share of the treasure, even if they finish last. The point is the searching, not the winning.

Keep It Safe, Quick and Cheerful

Before the hunt begins, do a quick safety sweep. Move any glass, tools or garden chemicals out of reach, cover the sandpit, and check ponds and water butts. Remind children never to put their hands into deep holes or dense hedges, and check the route yourself for thorny branches, stinging nettles and low wires. If you have a pond, position an adult nearby for the whole hunt.

Set a generous time limit and have a wet-weather plan ready, with clues hidden indoors along the hallway and stairs instead. Finish with a picnic blanket, a jug of squash and the treasure chest opened in the shade. Do that, and the children will be begging to run it again next weekend, this time with them doing the hiding.