Think of an average GoodGym pile of stuff, waiting to be shovelled. Then multiply by six, and you’ll get an idea of the amount of sand which needed to be shifted across Bethnal Green Nature Reserve to an even larger hole, soon to be a pond. In the dark.

Sadly there were no headlights on the wheelbarrows, and only Sree wore a headtorch, but skilful driving and bat-like vision mitigated against serious collisions as we negotiated the uneven terrain and sharp corners.

John finally remembered to put his gloves on, and seriously-hot Sree eventually thought of taking her coat off. Sara soon developed a technique to tip sand out of the wheelbarrow without said barrow disappearing into the pond. New recruit Osh made good use of his Hulk-like strength, having been recommended to GoodGym by his wise friend Rob.

When we were almost flagging, scarlet pimpernel Ceiling, fresh from water-station duties at the Hackney Half, clapped and shouted “well done” and “nearly there” to get us over the line. Incredibly, we’d shifted about three-quarters of the sand. And we’ll be back.