Metro is planning for one of the busiest days in its history on March 24, as a massive gun control rally will coincide with National Cherry Blossom Festival events.

March 24 is a Saturday, but Metro said it will have weekday rush hour service on the day. Hundreds of thousands of people are expected to ride Metro to attend the two major events.

Metrorail will open at 7 a.m. and trains will depart stations at the end of each line every eight minutes. Trains will run every two minutes at downtown stations. The rush hour service will continue until at least 6 p.m.

Here are some other things to know:

  • $2 Saturday parking rates will be in effect.
  • Metro will charge off-peak fares.
  • No bicycles, coolers, or other large items will be allowed on trains.
  • Metrobus will operate with its Saturday schedule, but there may be detours.

The March for Our Lives will take place on Pennsylvania Avenue between 3rd and 12th streets, so expect significant ridership at Union Station, L’Enfant Plaza, and Capitol South stations. Organizers said they anticipated more than 500,000 people to attend the march.

There will also be large crowds to see the cherry blossoms, so look for heavy ridership at Smithsonian Station and foot traffic near the Tidal Basin. Officially, the Cherry Blossom Festival opens on March 24, and there will be an opening ceremony at the Warner Theatre from 5-6:30 pm. However, the blossoms are expected to be at peak bloom on March 18.