When 10-year-old Tommy went snorkelling on a pristine Cornish beach, he had no idea how that perfect day would turn out. He loved these family holidays to the Cornish coast. The weather was sunny, the water was clear, and there were many creatures to observe as he swam out passed the surf. However, the sea can be a dangerous place, and anyone can easily get into trouble due to the currents and changing weather. As Tommy swam over the seaweed covered rocks, distracted by the world below, he was confronted with a choice to help save a life but put his own life at risk.