Keep cool, boy.

SLURP
Snow Cone Cocktails
What: Booze-fueled ice treats in cherry (with Tahitian vanilla bean), lime (with kaffir lime-infused vodka), and raspberry (house-infused raspberry vodka) flavors.
Why: One cone ($4 or 3 for $10) contains as much alcohol as a regular mixed drink.
When: Sun.-Wed., 5:30 p.m.-2 a.m.; Thurs.-Sat., 5:30 p.m.-4 a.m.
Where: Réunion Surf Bar, 357 W. 44th St., b/t 8th & 9th Aves. (212-582-3200).

REJOICE
Shelebration
What: Martha Wainwright, Lou Reed, Shilpa Ray, and other notable performers pay musical tribute to the playwright, illustrator, songwriter, and poet who knew Where the Sidewalk Ends.
Why: Shel Silverstein wrote the famed Johnny Cash tune “A Boy Named Sue.”
When: Sat., 7 p.m.
Where: Central Park SummerStage, 72nd St., at Fifth Ave. (212-360-2777). Admission is free.

ENTER
Start Small, Go Big
What: Calling all butchers, bakers, and artisan candlestick makers — this is your last chance to submit your budding business to our contest.
Why: Win a trip to New York City, a DailyCandy write-up, and industry advice from mentors like interior designer Jonathan Adler, renowned chef Marcus Samuelsson, Bravo’s Andy Cohen, and beauty innovator Kate Somerville.
When: By Fri., 10 a.m. EST.
Where: Online at dailycandy.com/startsmallgobig.

GROOVE
Mister Sunday
What: Former Sunday Best DJs Justin Carter and Eamon Harkin return with late-day dance beats, Red Hook Ball Field vendors Country Boys (quesadillas, huaraches), and sangria and Counter Culture cold-brew coffee from Botanica.
Why: Jump from disco and soul to classic house jams.
When: Thru Sept. 4. Every Sun., 3-9 p.m.
Where: Gowanus Grove, 400 Carroll St., b/t Bond & Nevins Sts., Gowanus. To get in before 5 p.m., R.S.V.P. to mister@mistersaturdaynight.com and buy a ticket ($10) online at residentadvisor.net; or go after 5 p.m. and buy a ticket ($12) at the door.

PARTICIPATE
The Largest Brunch at a Live Music Event
What: Adventure outside the city to set the Guinness World Record during Escape to New York’s three-day fest.
Why: Have a heaping helping of avocado toast with six-minute eggs, wash it down with a few Bloody Marys, and dance it off to Of Montreal and Mates of State.
When: Sun., 11 a.m.
Where: Southampton Elks Lodge, 605 County Rd. 39, Southampton. Brunch tickets ($39) at the gate; weekend ($275) and day ($100) passes online at ticketfly.com.

BROWSE
35 Crosby Opens
What: Metalsmith Randi Mates (Aesa) and clothing crafter Leana Zuniga (Electric Feathers) stock their airy Soho boutique with convertible silk frocks, ruffled necklaces, and baubles inspired by Marie Antoinette’s ribbon obsession ($75-$2,800).
Why: Artist Yolande Milan Batteau and designer Loren Daye (Chanel, Ace Hotel) are responsible for the Zen interior.
When: Mon.-Sat., noon-7 p.m.; Sun., noon-6 p.m.
Where: 35 Crosby St., b/t Broome & Grand Sts. (212-837-2648).

Photo: Patrick MacLeod / Courtesy of Réunion Surf Bar