1. Eat a cheese scone (not pictured).
2. Ride on the caterpillar in the café play area.
3. Play in the play house.
4. See if the Aeolian harp is sounding. (It never is, except once - we were so excited.)
5. Get wet by running too near the sprinklers.
6. Visit the glasshouses.
7. Stand on lots of rocks.
There are also lots of plants to admire, should you happen not to be four. But on the whole, being four appears to be fun.