Get off at Gojo when you take bus 100 or others from Kyoto Station. Is a 10-15mins walk upslope provided you are not tempted to stop for gifts and snacks purchases from the shops lined on both sides of the streets towards Kiyomizu. I've been there 5 times and while there is pass the cherry blossom period, you can still admire the greens surrounding the area. During the cherry blossom period, you literally walk in a sea of blossoms. Petals falling when the wind blows which is very romantic. Most of the construction of this temple has been completed so is definitely the right time for a post card photo.
I think this is a tourist staple of kyoto however it is getting very touristy. the gifts and snacks are also available in other parts of the city so is not something you can't get elsewhere unless you are strapped for time or on a tour package.
if you have the time, take a walk from Kiyomizu to Yakasa shrine. this area has many traditional buildings and less bus loads of tourists. stop by for a traditional japanese tea or desserts at one of the dessert shops along the way.
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