This was their first overnight hiking/camping trip. Max carried the tent the whole way in, Adelaide nearly made it all the way with her borrowed backpack. Everyone was in bed by 7:30 and Tim had to rouse them at 7:30 the next morning. The walk out was apparently much slower (being uphill) and required much more bribery encouragement/carrying.
I reckon 2km counts as a hike when your legs are little!