From UBC Wiki 
How to Use The Sandbox
The W S-L Wiki is organized into different content areas to accommodate different needs and the Sandbox is a place to work, experiment, collaborate, and play using the wiki. To add pages to the Sandbox, simply add the prefix Sandbox: before your page title.
Create a New Sandbox Page
|Create a New Sandbox Page|
How the Sandbox can be used
- Create your own test pages
- Play with formatting a page
- Create a page to coordinate or start a conversation about a project
- Write an essay or assignment
- UBC Wiki. University of Bristish Columbia. Updated 12 january 2012, 22:18 UTC.
Available from https://wiki.ubc.ca/Sandbox. Internet. Retrieved December 1, 2013.