One stays underwater while diving by using scuba diving equipment, such as a mask, fins, and a buoyancy control device (BCD), as well as a tank of compressed air. The diver breathes through a regulator attached to the tank, allowing them to stay underwater for an extended period of time. The BCD helps the diver control their buoyancy, allowing them to descend, ascend, or stay at a specific depth. Proper training and certification in scuba diving is also essential to ensure safety and proper technique while staying underwater. **

Yes, many people hold their nose when diving underwater to prevent water from entering their nasal passages. This can help to avoid the uncomfortable sensation of water going up the nose and potentially causing irritation. Some people may also use nose clips to achieve the same effect while diving. **

Yes, it is common to lose orientation when diving underwater in the dark. The lack of natural light can make it difficult to see reference points and navigate effectively. It is important for divers to have proper training and equipment, such as dive lights and compasses, to help maintain orientation and ensure a safe dive. Practice and experience can also help divers feel more comfortable and confident in dark underwater environments. **

Yes, it is common for divers to lose their orientation when diving underwater in the dark. The lack of natural light can make it difficult to see reference points and can lead to disorientation. It is important for divers to have proper training and experience in night diving to navigate safely in these conditions. Using a dive light and compass can also help maintain orientation underwater in the dark. **

No, it is not possible to see clearly underwater in a lake without a diving mask. The water in a lake can be murky and filled with sediment, which can significantly reduce visibility. Additionally, the human eye is not adapted to see clearly underwater without the aid of a mask, as it is designed to focus light in air, not water. Using a diving mask is essential for clear vision and protection of the eyes while underwater in a lake. **

People who enjoy underwater activities and challenges, such as swimmers, scuba divers, and water sports enthusiasts, may like to do underwater diving challenges in the swimming pool. These challenges can include holding one's breath for an extended period, retrieving objects from the pool floor, or navigating obstacle courses underwater. It can be a fun and challenging way to improve swimming skills and overall fitness. **

The Olympus Tough TG-6 is a good underwater camera suitable for diving up to 20m. It is waterproof up to 15m without a housing, and with the optional housing, it can be used for diving up to 45m. The camera is designed to withstand tough conditions, including underwater environments, and it has a variety of underwater shooting modes and features to capture high-quality images and videos while diving. Additionally, it is compact and easy to use, making it a great choice for underwater photography during diving activities. **

If you breathe underwater too often without diving equipment, you are at risk of drowning. Human lungs are not designed to extract oxygen from water, so attempting to breathe underwater without proper equipment will result in a lack of oxygen and can lead to suffocation. Additionally, prolonged exposure to water can also lead to other health issues such as hypothermia and water aspiration. It is important to always use proper diving equipment and follow safety protocols when attempting to breathe underwater. **