National Cherry Blossom Festival Parade: Watch celebrity performances from pop star Aaron Carter, Grammy-award winning singer Regina Belle and many others. There also will be marching bands from across the country, giant helium balloons, elaborate floats and other entertainment. 10 a.m-noon. Grandstand seats have been sold out . Watch the parade free along the route, which runs on Constitution Avenue from 7th to 17th streets NW. Metro: Federal Triangle (Blue and Orange lines).

Sakura Matsuri—Japanese Street Festival: If it’s Japanese, it is at America’s largest one-day exhibition of Japanese culture. The event features more than 15 Japanese food vendors, two beer gardens, 30 exhibitors of Japanese arts and culture, and 15 vendors of Japanese products. More than 30 hours of live performances on five stages. 10:30 a.m.-6 p.m. Cost: $10. Free for children 12 and under. 12th Street and Pennsylvania Avenue NW Metro: Federal Triangle (Blue and Orange lines) or Metro Center (Blue, Orange and Red lines).

Blessing of the Fleets: Passed down through generations around the world, this centuries-old ceremony is intended to safeguard crews and ships from the danger of the seas. 1-5 p.m. United States Memorial, 701 Pennsylvania Ave. NW. Metro: Archives-Navy Memorial-Penn Quarter (Green and Yellow lines).