The 51st annual Grand Prix of Long Beach returns to city streets this weekend.

So it’s time to plan how to navigate downtown Long Beach, as upcoming street closures may make it difficult to get around. Whether you’re attending the three-day event or have other plans in the area, here is what you need to know.

The city will begin closing streets on Wednesday, April 15, as officials make final preparations for the Acura Grand Prix of Long Beach, which will take place from Friday to Sunday, April 17-19.

Here are the upcoming street closures:

Wednesday, April 15

The side street leading into the race course off Shoreline Drive and Seaside Way will close at 4 a.m.

At 7 a.m., the northbound Queensway Bridge off-ramp and southbound Queensway Bridge on-ramp for Shoreline Drive will also shut down, along with Aquarium Way south of Shoreline Drive and westbound Shoreline Drive.

In the afternoon, at 3 p.m., eastbound Shoreline Drive from Broadway to Ocean Boulevard will be closed.

Pine Avenue, though, will remain open to traffic for visitors to hotels, waterfront restaurants, Shoreline Village and Shoreline Marina tenants, the city said in a traffic advisory last week.

The Aquarium of the Pacific will be accessible by Chestnut Place and Golden Shore Avenue. All vehicles must be out of the Aquarium parking structure by 3 p.m. on Thursday, April 16.

Friday to Sunday, April 17-19

During the Grand Prix, the city will shut off access to the Hyatt Regency, Shoreline Village and the Shoreline Marina from Ocean Boulevard, and Pine Avenue will close every morning at 6 a.m.

Southbound Pine Avenue and the interior streets of The Pike north of Shoreline Drive will also close each morning at 6 a.m., the city said.

Access to the south side of the Grand Prix track will be provided to event passholders and boat owners with permits at the intersection of Alamitos Avenue and Ocean Boulevard.

Pine Avenue will reopen to general traffic at 7 p.m. each day so people can access the Hyatt Regency, Shoreline Village and other destinations in the area.

Monday, April 20

Long Beach expects all streets to be reopened to traffic by 5 p.m. Monday. The streets that will reopen by then include east- and westbound Shoreline Drive, the Queensway Bridge off- and on-ramps, east- and westbound Seaside Way, Pine Avenue and Shoreline Village Drive.

Aquarium of the Pacific

The aquarium will remain open to visitors during Grand Prix weekend, but accessing it will be tricky, especially with its parking garage closed during the three-day racing event.

After 3 p.m. Thursday, the Aquarium of the Pacific will only be accessible via Chestnut Place or Golden Shore Avenue. Visitor parking will be available at the Molina Healthcare parking garage, and free shuttles will be available during operating hours.

For more information about street closures, visit the city’s website.