U.S. Vacation Spots

[mooby]

Scenario for you guys.

You're obligated to spend 3 full days in Phoenix with your brother and 3 of his friends. You don't know any of them real well except your brother. So far the only thing locked in is some sort of atv/shooting combo experience. What else are you doing with your time?

Grand Canyon is out of the question because nobody wants to drive 400 miles round trip in a day and lose a night at the expensive Airbnb we all paid for. I'm sure one of the nights we'll be eating a nice dinner and hitting the bar afterwards, but other than that I don't have any solid ideas. Google shows a lazy river and potential scenic/hiking spots near Phoenix that I'm sure will be crowded because it's 4th of July weekend. Other than that I got nothing.