Exploring T-Mobile Park with Kids: Mariners Baseball Fun

Mariners Baseball game Seattle, Kids Run Around The Bases, photo from the stands, more then 20 kids on the field running

Hey there! Are you and your little ones ready to cheer on our home team, the Seattle Mariners baseball team? It’s going to be an awesome season to be a Mariners fan at T-Mobile Park. They have plenty of exciting kid-friendly activities, fun photo ops, and tasty foods to keep everyone entertained. No need to worry about missing out on any of the action – we’ve got you covered! Check out this awesome list and why visiting T-Mobile Park with your kids should be at the top. Let’s make this summer amazing!

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T-Mobile Park Baseball Field Located in Downtown Seattle

1250 1st Ave S, Seattle, WA 98134 

Join the Mariners Kids Club for Free

If your kids are 14 years or younger, you should totally sign up your kiddos for the Mariners Kids Club – it’s completely free! They’ll get a Kids Club t-shirt, a membership badge with a lanyard, and even a free ticket to a Mariners game. Plus, there are tons of sweet perks all season long, like a hat, discounts, and more. Seriously, joining the club is the perfect way to get in on all the Mariners action this year.

Want more info? Just head over to Mariners.com/Kids or swing by one of the Kids Club kiosks at Sections 192 and 331. Oh, and don’t forget to re-enroll every year – memberships from the previous year won’t carry over. We can’t wait to see you and your little sluggers at the game!

Kids Can Run Around The Bases!

Hey, guess what? My kiddos went to their very first major league baseball game at T-Mobile Park this summer! They even got to run around the bases like true Seattle Mariners fans. Running around the bases was their highlight for the whole week! 

All kids 14 years old and younger can run around the bases on these special “run around the bases” game days. Have your camera ready, they can run fast! If your kid wants to run around the bases, make sure to line up around the 8th inning, as the lines get long! We went to line up after the game and ended up walking all the way up to the top of the stadium to line up. Lines begin out the doors on the ramps near section 120. Look for the signs and kids! Be sure to check out the Mariner’s Promotional Calendar to see which games give the kids a chance to run the bases. Note, that running the bases is a post-game activity, so be prepared to stay longer. But it’s definitely a blast!

Take Photos with the Mariners Moose!

If you’re heading to a Mariners game, be sure to swing by the Moose’s Den across from the kiosk on the Main Level at Section 191. The Mariner Moose hangs out there between 30 to 90 minutes before the first pitch for photo ops and then again during the 2nd, 3rd, 7th and 8th innings. Don’t forget to grab a picture – it’s a must-do.

Mariners Baseball game Seattle, Families line up to take photos with the Mariners Moose at the Moose Den during the game

Kids Clubhouse Shop

Once you’ve hung out with the Mariners Moose, or walk past the long line (like we did) head on down to the Kids Clubhouse store and grab some sweet Mariners merch with your 10% discount for Kids Club members. They’ve got everything from hats to hoodies to baseballs and even stuffed animals! Did someone say, foam finger!? It’s right by the Moose’s Den so you can’t miss it.

Visit the Kids Playfield and Kids Corner

If you’re planning to catch a Mariner’s game, make sure your little ones are ready for some excitement. With nine innings (or more!) of baseball, your tiny teammates may get antsy, but don’t worry – we’ve got you covered. Head over to the Moose’s Den in center field on the Main Level for the Mariner’s Kids Playfield, a nice little playground with climbing structures, sliding, and exploring the tunnels.

There’s also the Kids Corner in the 300 level (located behind Section 328) where your kids (14 & under) can enjoy a free timed run, pitching and hitting challenges, photo opportunities and more! Trust us, your kids will have a blast. It’s the perfect Park-in-the-Park pit stop to burn some energy and keep your crew entertained throughout the game.

Mariners Baseball game Seattle, Kids Playfield, their playground inside the baseball stadium

Kids Can Get a First Mariners Game Certificate

Are the kids headed to their first Mariners game at T-Mobile Park? Make sure to check in with your Seating Host or swing by the Guest Experience Center at Sections 128 or 329. They’ll hook you up with a FREE certificate to remember the occasion!

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Pack for Success

Just to give you a heads up that if you’re thinking about bringing a bag to the Mariners game (don’t forget – diaper bags are okay if you have a little one with you!), you’ll need to make sure it’s a clear bag that meets their size requirements.  This is all to make the entry process into the stadium a little smoother for everyone.

You can bring clear plastic or vinyl bags that are no larger than 12” x 6” x 12”, and a one gallon clear plastic zip-top bag that you can put your snacks in.

If you’re looking to flaunt your team pride, check out these awesome Mariners kids selections from Amazon. Whether you’re looking for a trendy new hat or a cozy hoodie, they have got something for everyone. So why wait? Let’s head over to Amazon and get some awesome Mariners gear to support our team!

Or have you you had a chance to explore the awesome MLB shop yet? They have such a wide variety of awesome gear, including hats, jerseys, and even trading cards! It’s definitely worth checking out if you’re a baseball fan.

Parents - Know Before You Go

Mariners Baseball game Seattle, Kids taking photo in front of the stadium on the large metal baseball glove art sculpture.

Just a friendly reminder to check out the bag and stroller rules before you head to the ballpark.

Can I bring a stroller?

Yes, strollers, wheelchairs and other mobility products are allowed into the stadium.

Can I bring a bag into the game?

Single compartment diaper bag are allowed, but other large bags will not make it past security. Don’t worry though, you can bring clear bags or small clutches!

Can I bring in outside food and drinks?

Yes, you can pack and bring your own snacks and clear water bottles (with unbroken seals) for the game. If you’re looking for some munchies, you can even grab some food from the vendors outside the stadium. If bringing food from home, just be sure everything is wrapped, bagged or in a container if you’re bringing it into the ball park.

For all the parents out there, you’ll find diaper changing tables in most restrooms and a private Nursing Lounge at Section 128. Enjoy the game!


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