Whether you're 7 years old or 47 years old, chances are you've heard about the Detroit Zoo's new Penguinarium exhibit opening April 18. Penguin lovers of Michigan rejoice at this news as we mark our calendars for this exciting new event! Here are some facts about the Detroit Zoo's new Penguinarium.

It will be the largest Penguinarium in the world.

The 33,000-square-foot facility will be the largest of its kind thus far. It holds 326,000 gallons and is 25 feet deep.

It will house more than 80 penguins.

They will swim above, below and around visitors in their tunnel habitat. The species include gentoo, macaroni, rockhopper and king.

The first gentoo penguins arrived around Christmas.

Happy holidays! This species of penguins is the third largest and tend to live in the coldest climate. The zoo pioneered housing this species in late December 2015.

The old Penguinarium will be turned into a bat conservation center.

No unused space in the Detroit Zoo! The old exhibit will house other cool friends!

Admission is free!

Yes, you still have to pay to get into the zoo, but admission into this one-of-a-kind exhibit is totally free.

The exhibit parallels Antarctica as closely as possible.

Inspired by Sir Ernest Shackleton, the exhibit experiences arctic blasts, waves and snow to evoke the harsh natural climate of the southern continent. The exhibit will be set at 37 degrees fahrenheit.

Visitors will experience a taste of Antarctica.

Visitors will be surrounded by 4-D effects, including arctic blasts, waves, snow and iceberg “calving” – icebergs splitting, sending massive cascades of ice crashing into the sea.

Penguins will get to deep-dive.

Zoos hardly ever are built to let penguins deep-dive into their exhibit, but Detroit's Zoo will be designed deep enough for penguins to do just that.

It cost $30 million.

Well worth it.

It took 15 months to construct.

Head over to http://detroitzoo.org/animal-habitat/penguinarium/ to learn more.