An oily rag family from Northland has written to us about their no-cost family activity. Grandma and four kiddies packed a picnic lunch and had a great time at their local reserve. The kids each made a stick raft from dried flax flower stems, which they dropped off a bridge for a race down the stream. On their way to the bridge, they discovered a remarkable number of coloured rocks that had been hidden for children to find. They then had great fun in hiding them again for others!