I wish I fished up there enough to have a favorite spot!
The “meth” hole is a area that has what’s claimed to be methane gas bubbling out of the bottom in about 30 feet of water. It has enough movement that the ice seldom freezes and if it does it’s MUCH thinner and unsafe….I don’t belive the unsafe are is much larger that 10 feet in dia., if that.
I’m not good enough with directions to get you the location…but keep in mind Horseshoe is part of a river and with moving water there are places you NEED to avoid.
Stay on the beaten paths and you’ll be good. This is not a lake that a new person (like me) should be exploring by himself.