Remember to keep your picks where you can get them. Their useless half way up your coat sleeves. Take a life vest, you can always take it off. Have an augar, spud, 2x2 or stick in hand, you don't go thru as far and helps getting out. And don't make beelines to other guys already on the ice, check for yourself as you go. And early clear snowless ice is the best time plumb new places. You can see where the weedlines, breaks and points begin and with a water bottle and vex you get good readings thru the ice when it gets deeper.