Seaside is a beautiful coastal city in Northern Oregon located 20 miles South of Astoria and just 9 miles North of Cannon Beach. The beautiful sandy beaches are perfect for long walks and shell hunting, while the quaint downtown district is a great place for shopping and dining. Be sure to take a leisurely walk down the prom and visit the indoor carousel and Seaside Aquarium. You won't want to miss a fun ride on the old-fashioned bumper cars.