You might want to spend some time browsing the exhibits at Soviet Submarine S-56, Museum of Pacific Fleet, or Vladimir K. Arseniev Museum of Far East History. Svetlanskaya Street, Pokrovsky Cathedral, and Vladivostok Fortress are well-known local landmarks worth a visit. You can watch performances at Primorsky Krai Academic Drama Theatre Gorky, Krai Primorsky Puppet Theater, and Youth Theater if you're interested in local theater.