You can see cherry blossoms in bloom in Sayama Inariyama Park from mid March to mid April. They have several different varieties of cherry blossoms, hence the hanami (flower viewing) period is longer than most. However, the park is best known for its Somei Yoshino cherry blossoms. They typically bloom the last week of March and the first week of April.
During that period there is usually a two day cherry blossom festival. (In both 2020 and 2021, the festival was cancelled due to the pandemic.) The festival generally falls on the first weekend of April. Thousands descend on the park to enjoy the live entertainment and to have a hanami under the stunning cherry blossom trees. At the festival you can find traditional food and festival stalls as well as food vans such as the one pictured above, which sells crepes. Moreover, they usually light the cherry blossoms up at night. There is often a mini train and other events for kids too.