Slidell is located in St. Tammany Parrish on the Northshore of Lake Pontchartrain. For over 150 years, people have made their way from New Orleans across Lake Pontchartrain to find the best of times in St. Tammany. Slidell has many things to offer. There are 2 state parks, 2 national wildlife refuges, and a wildlife management area. On the Northshore, you can sail, fish, swim, hike, bike or ramble. You can take a boat tour of Honey Island Swamp. Come visit the Sleep Inn and enjoy all that the Northshore has to offer.