Diggers, this park's for you! Razor clamming is a favorite activity as well as surfing. If you plan to visit prime Newport attractions like the Oregon Coast Aquarium and Hatfield Marine Science Center, you must stop in for a refreshing picnic at Agate Beach. A tunnel leads to the invigorating ocean beach and day-use area. If you walk through this tunnel, you might imagine Newport farmers many years ago leading cattle westward through this tunnel to the ocean salt.