This summer, Mariner Moose is heading into the community, and Kids Club members are invited to join us for the ride! Inspired by the journey around the bases, Moose’s Grand Slam Summer Challenge is a three-stop community series that brings the fun of the Mariners beyond the ballpark. Each event highlights a different theme—reading, outdoor exploration and giving back—with Mariner Moose and his Park Rangers leading the way!
The summer challenge will wrap up with a final Pizza Party celebration at T-Mobile Park, featuring local mascots and delicious slices, thanks to Ballard Pizza Company. This event is open to all Kids Club members with active game tickets. Kids who complete all three stops will unlock access to exclusive Mariners experiences—including game tickets, on-field batting practice passes, special on-field activations and more!