From China to Italy, covid-19 has led to quarantines around the world. For divers, self-isolation is a little more difficult than for other partners. We prefer to be in the sun, feeling the salt water on our skin, diving into the new world beneath the waves. This is especially true in times of chaos. There's no place like blue. There are no sad news reports, no frantic shoppers, no intense work in the ocean. At the bottom of the sea, fish and sea creatures continue to be busy as usual. There is nothing like the tranquility of being underwater. While self-isolation can be difficult for divers, there are ways to use this time to improve your diving skills. Here are five diving techniques you can practice at home so you can prepare for your next dive trip