Review for Grey Eagle Casino and Bingo Review For Grey Eagle Casino and Bingo Google User Jun 25 '18 at 2:17 We stayed in our RV rental overnight in their overflow lot. It's a grass lot. It had just rained, so it was a little muddy. BUT it was free. Just had to check in with the front security desk. There was obviously not a bathroom (washroom) out in the grass lot, but free is free. Highly recommend it if you're stopping in your RV in Calgary. View full site to comment or like