Let’s keep inflatable flamingos off the Cuyahoga River, at least when there’s a big boat on the way. (Capt. Jordan Kit, Goodtime III)

We get it. The Cuyahoga River is pure joy on a sunny summer day, a smooth spot for cruising, whether you’re on a jet ski, kayak or stand-up paddleboard.

But the river is still a federal shipping channel. And those giant freighters have very little room to maneuver.

So play it safe. Here’s what not to do on the Cuyahoga, thanks to photos by Goodtime III Capt. Jordan Kit.