To hide the Sandbox forum, go to this page in your User Control Panel while logged in and add yourself to the "Sandless" group.
- If you later decide that you want access to the Sandbox forum, you can remove yourself from the "Sandless" group via the same link above.
- Hiding the Sandbox forum also hides it from the "New Posts" list and from search results: you won't be able to see any content from the Sandbox forum, no matter how you try to access it.