Shown here is the coolant drain bolt from the block. Plan to replace the washer after removal.

Note how short this bolt is. This means it will come out of the block sooner than you may expect it to. For this reason, as soon as it begins to feel loose enough when using the wrench to switch to turning it out by hand, this should be done. Otherwise your wrench, extension, socket, etc. may be in the way and will get covered in coolant.

When this drains the spray from the hole will hit the exhaust pipe, splash off of the engine cross-member, etc. It's definitely the messiest fluid change on these cars. Catch as much as you can in the catch pan and use kitty litter to soak up any that lands on your driveway.