What do Rainsford's actions reveal about his character after he falls in to the sea and before he reaches the chateau? (The most dangerous game)

Rainsford falls off the yacht when he drops his pipe while standing on the railing of the ship. He reaches for his pipe and falls into the water. He then swims to the shore where he had heard noises and tries to get to land. It shows that he is curious and has a strong will to survive.