Parking for Hard Rock

Hey everyone. Will be headed down to Miami this weekend for the Coldplay concert. Driving our own car from tampa. Any local info on where to park? I see the Calder casino and as far as I can see people are saying you can park there for free and take a shuttle? I have early entrance to the stadium for the concert so I’ll be parking very early. Feel free to message me. Thanks fellow Floridians!