Seaside Park 5th Ave Beach is a beautiful beach located in Seaside Park, United States. This beach is approximately 1 mile long with white sand that is perfect for walking, sunbathing, and building sandcastles. There are many activities available at this beach, such as swimming, surfing, fishing, and boating. The beach has many amenities, including lifeguards on duty, bathroom access, and showers. Please note that dogs are not allowed on the beach.