...When the weather is bad and you need to get a fix. Witches is usually the first area to dry out due to its location in Athens. Sitting atop of "Witches Hill", next to state route 33, it is exposed to the sun and with a slight breeze you can usually climb there the next day following a storm. Just be prepared for the muddy and steep approach to the bouldering.
Another nice feature to the climbing at Witches, is that most of the problems are in the easy to moderate range with great landings, allowing for a great circuit. Don't let this turn you away if you think your a crusher, there are still stout lines and projects to be had.