In fact, there is. Arizona has Gaidhlig immersion week and Grandfather mountain hosts a similar event as well.
Of course, Canada has events as well.
I've been trying myself to get a hold of the language. Slowly rising out of beginner with help from a native speaker and another friend who is learning as well. Helps to have a group and try to use a few phrases each time.
For anyone who hasn't seen it, there is a free internet archive called Sacred Texts containing a healthy Celtic section of myths, poems, epics, stories, etc. They even have a few offerings in Gaelic, for those who would like to practice reading:
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