The days getting shorter and air becoming (a tiny bit) cooler are reminders that summer is starting to fade. Before it slips away entirely and your attention turns to pumpkin patches and leaf peeping, head to one of these six underrated lakes for a final day of fun in the sun.

Bear Lake, Utah

Boaters love spending the day at Bear Lake (Image credit: Ron Reiring / Getty Images)

A "crystalline" lake on the Idaho- Utah border, Bear Lake's gorgeous blue hue has earned it the nickname "Caribbean of the Rockies," said Lonely Planet . Visitors can go boating, jet skiing, fishing, camping and hiking at one of the lake's three recreation areas. There are also sandy beaches to lounge on when you just want to gaze out at the water.

Cave Run Lake, Kentucky

Cave Run Lake is a playground for

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