Briefly, the competing versions were as follows. The appellant said that the boat had been launched off the beach at Lancelin, on a fine and sunny day with excellent visibility. He had not taken much notice of the state of the sea. The respondent had been driving the boat and making conversation, looking back at two female passengers. The appellant went to the front of the boat to check an anchor, and was sitting or kneeling on the floor when the respondent called out, "What will I do?". There was a wave about three to four metres high about five metres from the boat at that stage bearing down upon them. The boat was just accelerated "flat out", he heard the sound of the motor screaming, the boat was in the air for a considerable time and then hit the water with a great impact. He fell out of the boat and suffered a variety of injuries. He alleged that the respondent should have seen the unusually large wave from a considerable distance away, that his decision to accelerate towards it rather than to turn away from it and make for the shore, or alternatively, to cut the motor and remain where he was, was the wrong decision. Alternatively, he said that having decided to accelerate towards the wave, the respondent did not reduce power as he was passing through the wave which led to the boat becoming airborne, causing injury.