If you have nothing to do tomorrow morning and want to get a free look at the Lions, then head to Detroit Renaissance High School. Rather than practice in Allen Park for the team's final OTA, the Lions will participate at Detroit Renaissance in an event that is free and open to the public. The stadium seats 1,000 people, but I would imagine more than that could be accommodated if needed.
The address for Detroit Renaissance is 6565 W. Outer Drive. It should be noted that if the weather takes a turn for the worse, the practice will be closed. So make sure to check the forecast.