Marysville couple finds hidden tunnel under riverside house [View all]

(Detroit Free Press) MARYSVILLE — Trevor and Hayley Gilmartin always suspected there was something under the indoor hot tub in their home.

Anytime they filled it with water, the hot tub would slowly drain.

In March, the couple decided to renovate the room. They removed the hot tub and found a bigger hole than expected, one big enough for a person to go through, and that was clearly not made by accident.

"We ended up checking it out and going down there, and there's a room full of water down there," Trevor said. ............(more)

https://www.freep.com/story/news/local/marysville/2024/06/22/marysville-couple-finds-hidden-tunnel-under-riverside-house/74155560007/