In reality, I like the ideas of using that money to make money to help support groups that need it.
However, since we're living in fantasy world anyway, I'm going to blow it on my disc golf complex:
$500,000 for the perfect plot of land.
$100,000 for course installation - Three courses (red, white, and blue), with the ability to convert to one large tournament-only gold layout playing across all three courses.
$200,000 for the construction and stocking of a small clubhouse/proshop
$100,000 for landscaping
$100,000 added cash for the grand opening tournament