Once you've booked your class, the full address of the location is sent in your booking confirmation email, and 3 day reminder email.
Google Maps directions:
In your 3 day reminder email, simply click the "Directions" button next to the full address of the class. This will take you through to the location on Google Maps, where you can use as normal to figure out directions to the class.
If your class location requires further instruction, your teacher will include this in their pre-class notes. These will be included in the 3 day reminder email.
On your way to the class?
Please call the number on your 3 day reminder email. This goes straight through to your teacher, who will be able to help.