Sandcastle Engineers

Wet sand, a moat, towers and a bridge – at the beach, at a lake or in a sandbox, the family builds a castle that can survive a wave.

Time: 45 min
Age: 3–12 years
Energy: Medium
Where: Outdoors

The steps are in the app

Building with sand is real engineering: how much water makes it hold, how tall can a tower go, how do you stop the moat from collapsing? Planning a castle together is also great teamwork.

The steps are in the app

Step-by-step instructions, tips and an easier and a harder version are waiting in the Hopsa app – along with 300 more ideas matched to your kids’ ages.

Join the waitlist

Coming soon to the App Store and Google Play

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All play ideas →