Keeping this in consideration, is Vladivostok safe for tourists?
The city is relatively safe as long as you use common sense as your guide and avoid traveling off the beaten path.
Also, how do you get to Vladivostok? You can reach the capital of Primorye by plane, train, or sea ferry; of course, plane is the quickest. From Moscow and St. Petersburg the journey takes around 8–9 hours, from Tokyo, Beijing and Seoul, only 2–3.
Similarly one may ask, how many days do you need in Vladivostok?
Two days in Vladivostok would be nice, seafood is great. Do not forget 9 hrs time difference with Moscow and 10 hours with Kaliningrad - you will be tired on the first day
Do I need a visa for Vladivostok?
Only visa-exempt citizens can enter Russia without a visa. The majority of foreign travelers will need a visa in order to enter Russia through Vladivostok.