Ethan Thomas, 9, of Vernon Hills holds a bluegill he caught during a fishing class with Lake County Forest Preserve District environmental educator Mark Hurley. The class was part of the Stevenson High School PREP courses. | Buzz Orr~Sun-Times Media

Hyeyoon Chung (front left) of Buffalo Grove and her son Simon Yoo, 9, walk to a lake during a fishing class with Lake County Forest Preserve District environmental educator Mark Hurley at the Independence Grove Forest Preserve. | Buzz Orr~Sun-Times Media

Noah Thomas, 9, of Vernon Hills works on his casting skills as his mother Sherri Thomas looks on during a fishing class with Lake County Forest Preserve District environmental educator Mark Hurley. | Buzz Orr~Sun-Times Media

Lake County Forest Preserve District environmental educator Mark Hurley teaches a parent/kid fishing class at Independence Grove Forest Preserve June 20 in Libertyville.| Buzz Orr~Sun-Times Media

Fishing rods and bobbers at a fishing class at the Independence Grove Forest Preserve. Lake County Forest Preserve District environmental educator Mark Hurley taught as part the Stevenson High School PREP courses. | Buzz Orr~Sun-Times Media

A fish swims in the waters at the Independence Grove Forest Preserve. | Buzz Orr~Sun-Times Media

Simon Yoo, 9, of Buffalo Grove holds a bluegill he caught during a fishing class with Lake County Forest Preserve District environmental educator Mark Hurley on June 20. | Buzz Orr~Sun-Times Media

Lake County Forest Preserve District environmental educator Mark Hurley assists Noah Thomas, 9, of Vernon Hills during a parent/kid fishing class at Independence Grove Forest Preserve in Libertyville. | Buzz Orr~Sun-Times Media

Lake County Forest Preserve District environmental educator Mark Hurley (far right) leads a parent/kid fishing class at Independence Grove Forest Preserve. | Buzz Orr~Sun-Times Media