Lucy wants to explore the world and do something daring and difficult. But people laugh at her when she hatches a plan to row across the Atlantic Ocean.

So her family rallies round to help prepare for the journey, loading her boat with supplies for 3,000 miles of rowing. Her school friends follow her from afar, learning about the ocean, its wildlife and pollution.

Alone at sea, Lucy faces seasickness, storms and a very sore bottom, not to mention close encounters with ships and a humpback whale.

Yet there are also the joys of wandering seabirds, shooting stars and magical sunsets, as she finds she is capable of more than she ever imagined.