It’s going to be ship-shape.

DO
Yacht Show
What: Check out super-size luxury yachts (for sale or charter) in the sparkling new marina and tour around the just-finished harbor.
Why: Re-gotta have it.
When: Thurs., 11 a.m.-6 p.m.; Fri., 11 a.m.-7 p.m.; Sat., 10 a.m.-7 p.m.; Sun., 10 a.m.-6 p.m.
Where: 137 National Plaza, National Harbor (410-268-8828).

Scootergate
What: Zip around for organized rides, live music, and chill-axing with scooterists during the fourth annual city rally.
Why: Boot, scoot, and boogie.
When: Thurs.-Sun.
Where: Details online at scootergate.us.

LEARN
Is It Authentic?
What: Find out how to determine the authenticity and provenance of artwork at a presentation touching on connoisseurship and scientific analysis.
Why: It’s faux real.
When: Sat., 3 p.m.
Where: Smithsonian American Art Museum, 8th & G Sts. NW (202-633-1000).

EAT
Locolat
What: Pastry chef Niel Piferoen opens the Belgian-style chocolate and waffle shop.
Why: Do the locomotion.
When: Tues.-Sun., 7 a.m.-7 p.m.
Where: 1781 Florida Ave. NW, at U St. (202-518-2570).

HEAR
Disco City
What: The dance music party returns with Chris Burns and Maxmillion Dunbar.
Why: Do the hustle.
When: Sat., 9:30 p.m.-2:30 a.m.
Where: Rock & Roll Hotel, 1353 H St. NE, b/t 13th & 14th Sts. (202-388-7625).