Summer, we hate to see you go. But we love watching you leaf.

PLAY
Gardner After Hours
What: The Isabella Stewart Gardner Museum pairs cocktails and live music with fine art at its new monthly mixer.
Why: Drink in some culture.
When: Tonight, 5-9 p.m.
Where: 280 The Fenway, Fenway. Tickets at 617-278-5156.

Henna Party
What: Get inked at this Indian bazaar and henna tattoo party.
Why: It’s better than bangles and rings.
When: Tonight, 6-8 p.m.
Where: Shake the Tree, 95 Salem St., North End (617-742-0484).

EAT
Kingston Station Opens
What: Brand-new downtown space marries bistro fare with an airy, tile-covered space.
Why: Think chicken paillard and steak frites inside a vintage subway station — only cleaner.
When: Mon.-Fri., 11:30 a.m.-2 a.m.; Sat., 5 p.m.-2 a.m.
Where: 25 Kingston St., Downtown (617-482-6282).

LEARN
Opera 101
What: Delve into the Boston Lyric Opera’s upcoming season during a six-week class.
Why: Edumacate yourself.
When: Session one starts tonight, 7-8:30 p.m.
Where: Mary Norton Hall, Old South Church, 645 Boylston St., across from the Boston Public Library (617-542-4912 ext. 242). Register online at blo.org.

SHOP (and DRINK)
Diseño Champagne Brunch
What: Stop by the Latin-inspired home store for empanadas and mimosas.
Why: Get a sneak peak of what’s new for fall.
When: Sun., noon-3 p.m.
Where: 409 Harrison Ave., South End (617-423-2008).