It is worthy to take a trip to North of Seoul--Kyunghee University's cherry blossoms festival. Campus and university hall are filled with white cherry bulbs and petals. Take Seoul Subway Metro Line 1or the Junang Line to Hoegi Station. Here is address--26 Kyungheedae-ro, Dongdaemun, Seoul.
Expected Cherry Festival Korea 2017,Best Cherry Tour Korea 2017
There is a good amount of space and you can move around in the park a bit more easily, and while it is definitely popular, it is not the most popular festival on this list so the crowds should be a bit more manageable as well. Picnic with mat and snacks is great for cherry blossom festival here. Here is address: 273 Ttukseom-ro, Seongdong-gu, Seoul. 
Expected Cherry Festival Korea 2017,Best Cherry Tour Korea 2017
If you want to have other choices like parks, Seoul Grand Park is great. Surrounded by cherry blossom trees, you will view jungle animals at the zoo or a guided tour full of culture at the modern art museum. Group with different interests are suitable for this cherry tour.
Expected Cherry Festival Korea 2017,Best Cherry Tour Korea 2017
If you have planned a budget travel within Seoul for cherry photography, taking Seoul City Tour Bus is good choice which keeps circulating the courses from Gwanghwamun so that tourists can get convenient access to popular sightseeing spots. In addition, you can pay a visit to 4 grand palaces--Changdeokgung Palace, Deoksugung Palace, Changgyeonggung Palace, and Gyeongbokgung Palace. Especially for buddist photographer, it is perfect to take this tour and mediate the load of photography equipment. It is said that there are Japanese cherry trees in Changgyeonggung palace that you can enjoy beauty of Korean cherry and Japanese Sakura.
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Expected Cherry Festival Korea 2017,Best Cherry Tour Korea 2017