We've been diving at Haigh since 2007, don't know why I never thought to review it until now?!
There is something to be said about "jacuzzi" diving but when you live in NW Indiana and you truly love to scuba, you love the quarry!
As said in the other reivew, admission to Haigh is $20. We have our own equipment and tanks, but they do rent everything there. There is a changing house and they have picnic tables throughout for your gear and if you want to have a picnic or cookout. If you can visit the quarry during the week, I would highly recommend it, not crowded at all! The vis is better during the week, fewer divers and it does not get silted up. We just visited yesterday and had great vis. 20' in most areas.
Our dive shop certified us here at the quarry and it's also a great place to continue your education and practice! There are a lot of things that are sunk, you can view a map or purchase one so you can navigate around. Beware of the Blue Gill a.k.a. Piranha Gill, they will nip anything that is not covered by neoprene! If you're lucky, you will spot one of the 3 elusive Paddle Fish.
I would highly recommend the quarry for a day of fun/casual diving! It has something for every level of diver!