March For Our Lives: <broken link removed>
Basically parading school kids around to promote gun control while doing nothing that will actually make them or anybody else safer. It's also where they will get their 1000 signatures to get the gun ban initiative to the general signature phase.
Edited the title to identify the protest
Quite possibly - of course, the 1,000 signatures have to be registered voters - so a lot of those kids won't be able to help in that way - and if they do sign, they may invalidate other signatures on the same page as a result.
Still, even if they get approval to start gathering signatures, they'll need to gather, it's estimated, at least 120,000 valid signatures to get to the 88,000 they actually need to get it on the ballot. They have a lot of work ahead to make that happen.