This is going to be very important and whether you are a newbie to the sport or an expert you need to have a leash. If you fall off your board and you happen to be in waters that are traveling very fast you could lose your board. This can be very dangerous because your board can be used as a flotation device. Always bring a leash because it can save your life. Also wear a life jacket it should not matter how skilled you are you should always be wearing a life jacket because it too can save your life if you fall of your board. Especially if you are with children you should have your children wear a life jacket because if they happen to lose their balance and fall in the water they can easily swim on the board.
If you live by the ocean and you decide to stand up paddle board you might want to check the tides before you head out. This is very important because you do not want to get caught in the tide and not be able to paddle back. Also, you want to make sure you do not get into very strong currents. These safety precautions are meant to be taken seriously and remember to always have fun and be safe out there!