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Lake Pontchartrain Scenic Causeway

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24.0 miles: 21 minutes
When driving the world's longest overwater highway bridge, it is easy to imagine you are actually driving on the water. The 24-mile-long Lake Pontchartrain Causeway connects Metairie to Mandeville. Look for the New Orleans skyline visible from the bridge.
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24.0 miles: 21 minutes
Completed in 1956, the Lake Pontchartrain Causeway created a direct route from New Orleans to Mandeville. The 626-square-mile brackish estuary is a popular crabbing, shrimping and boating area. As you embark on your 24-mile journey across the lake, say goodbye to the shore and enjoy the sensation of being "out to sea" from the comfort of your own vehicle.