Keys with blue lanyard found near Silver Beach

I found a set of keys this morning around 10:15am in the parking lot near the Silver Beach Carousel on Lake Street in St. Joseph, Michigan. There's a bright blue nylon lanyard with a small white compass charm and a red enamel fish on one of the keys. The bunch includes about six standard keys and a black plastic tag engraved with 'M-12' plus a brass tag with the initials 'KB'. They look worn but usable, and I'd really like to see them back with their owner—if this sounds like yours, please get in touch.