diff --git a/User-Testing-Workflows.md b/User-Testing-Workflows.md
index 7dddee6..b31245c 100644
--- a/User-Testing-Workflows.md
+++ b/User-Testing-Workflows.md
@@ -40,6 +40,10 @@ pull request reflecting the state of user testing.
 
 It is also possible to issue bot commands to control the behavior of the bot.
 
+## Playground
+
+To experiment with user testing workflows, use https://github.com/keymanapp/keymanapp-test-bot-playground
+
 ## Example
 
 This is a short example of a single test and test result.