Flyboards are cool! You see these things on the Detroit River, Lake St. Clair, Zukey Lake in Pinckney, etc, alot.
Invented in France in 2012, Flyboard’s are water jetpacks powered by a jet ski turbine linked to a 55-foot long hose which feeds water into the flyboard and allows you to soar some 50-feet up in the air. They retail for around $4,500.