The film provides a comprehensive guide on snorkeling skills and rescue techniques, emphasizing the importance of proper equipment such as masks, snorkels, and fins. It discusses how to choose the right mask for comfort and fit, the proper use of snorkels, and techniques for clearing water from both masks and snorkels. The film also covers essential skills for entering the water safely, practicing buddy systems during snorkeling, and techniques for locating and rescuing submerged victims. It highlights the need for training and emphasizes that while these skills are crucial for rescue, they do not replace the need for a full certified course in skin diving.