A fully militarised zone for most of the past 150 years, this big island just offshore has been reinvented as a business and academic centre and is home to the sprawling Far Eastern Federal University campus and the new Oceanarium. There's great tourism potential here, not least for some excellent beaches as you go deeper and deeper into the island and away from the city, but at the moment Russky Island is very much a DIY attraction.
Access to the island is by bus over the suspension bridge. Take a northbound bus 29 or bus 15 from Okeansky pr or ul Aksakovskaya. The more-frequent bus 15 takes you to the DVFU campus, from which you can transfer to a minibus 29, which makes a loop, stopping in Rynda and other spots on the island. Rynda has a couple of resorts and the best beaches (just hop out when you see one you like). There are many forts on the island, including the Voroshilov Battery.
