Carlsmith Beach Park is one of many parks along Kalanianaole Street east of downtown Hilo, but it might be the best of them all. The large protected saltwater lagoons are great for swimming, floating, snorkeling, and stand-up paddleboarding. Many paths meander through the park making this a great place to walk around. Like most beach parks in Hilo this one doesn’t have a sand beach, but it’s an excellent place to hangout.