The Warriors just announced a block party set for tomorrow outside the Chase Center that is free and open to the public, featuring food, drinks, games, and appearances by the Warriors themselves.

The party is happening from noon to 4 p.m. on Saturday, September 7, and Chase cardmembers will all get a free drink ticket. Also, the first 250 people to arrive will get a free hat. During the party, starting at 1 p.m., there will be a live outdoor screening of the US Open women's singles final, in which Serena Williams will be facing 19-year-old Canadian player Bianca Andreescu.

Food and beverage will be available for purchase from three vendors at the arena: Alicia’s Tamales Los Mayas, Hot Dog Bills, and City Bistro + Sadie’s Deli.

The party follows Friday night's grand opening concert, featuring the SF Symphony and Metallica.

If you're planning to head down to Mission Bay either for the concert tonight or the block party tomorrow, Bay City News has a rundown of the many ways that the SFMTA and BART would like you to get there — because driving is going to create a clusterfuck like no other and we don't want to make UCSF Medical Center's worst nightmares come true, traffic-wise.

There are two new Muni lines that will be servicing the Chase Center on game and concert nights: the 78X-16th Street Express will pick up passengers at 16th and Mission BART and shuttle them to the arena; and the 79X-Van Ness Arena Express will pick passengers up at all transit stops along Van Ness Avenue, make a stop at 16th and Mission, and then head straight to the Chase Center. Passengers wanting to return to BART can board the 78X for up to a half hour after any event at 16th and Illinois Streets. (Service on both lines will begin two and a half hours before every game or concert.)

There will be increased T-Third Street service, with the theoretical ability for four light-rail trains to board at once at the new UCSF/Chase Center platform. (We'll see how that works out!) Also, the 55-16th Street, the 48-Quintara/24th Street and the 22-Fillmore will all be running on regular schedules and stopping near the Chase Center. And remember: Any concert or game ticket is good for free Muni rides all day.

Promised ferry service to the arena from the East Bay, to Pier 48 1/2, will not be up and running until October, unfortunately.

Bike valet, courtesy of the SF Bicycle Coalition, will be offered on site near the corner of 16th and Third Street.

Related: Pretty Much None of the 900 Parking Spots At the Chase Center Are For the Public