Not hot air balloon, but rather helium balloon. Free every day on Thursday to Sunday, 10 AM - 3 PM and 7 - 10 PM, at Great Park in Irvine. You and up to 25 others can enjoy the beautiful landscape of Orange County at 500 feet in the air. Dress warmly or bring a blanket to cuddle. Good to call in advance about flight conditions (click here for website). Happy flying!
Approximate cost creative date idea = Free.
Actual value of the cheap date idea = $148 pp for 1-hour hot air balloon rides for comparison.
Click here for map
Kiss & Tell Date Idea by Mrs. Roberts