Smell that? It’s either the hot summer sex or the flying fish.

SEE
Fish Tossing
What: Last chance to see Fulton in action before the 184-year-old market moves to the Bronx.
Why: Downtown’s gonna miss that fishy stench.
When: Early in the morn’.
Where: Fulton Fish Market, at South Street Seaport.

EAT
Nobu Fifty-Seven
What: Speaking of fresh fish … the new midtown outpost is finally open.
Why: Like you can’t fill in your own hyperbolic, hyperventilated blank.
When: Just as soon as you sweet talk your way into a table, sugarlips.
Where: 40 W. 57th St., b/t Fifth & Sixth Aves. (212-757-3000).

HEAR
Extra Action Marching Band
What: Sexed-up flag twirlers, rowdy trumpeters, and drunken percussionists entertain the masses.
Why: Toot yer own horn.
When: Sat. at 2 p.m.
Where: East River Park Amphitheater, 400 FDR Dr., just south of the Williamsburg Bridge. For more info, go to ermp.org.