6" on the trout pond just outside of town. they call it a "reservoir" but the name seems overkill to a 38 acre pond, even if it does get to 50' deep.
didn't catch a thing but I did get to teach my boy about Ice conditions and how to check it safely starting at shore. drilling holes, skimming, setting up a portable and he showed me what happens to the lantern when you just drop it next to the truck and it tips over. the trip only cost us 1/8th of a tank of fuel, 2 mantles and a globe.
he loved it even though we didn't get a nibble