Hampton Kids
175 Daniel's Hole Road
Wainscott, NY 11975
631-537-4614

Hampton Kids is an indoor/outdoor family fun center and party venue, offering a wide assortment of party packages and themes. All parties include 45 minutes of games and bounce fun, as well as 30 minutes of structured activity. The activities range from crafty (design your own apron, backpack or pillowcase) to active (tennis clinics, yoga or relay races). New themes include Karaoke Kraziness, Black Light Dance Party and decorate your own rice krispie treat. All packages include a party hostess, food, drink and a T-shirt for the birthday child. Add-ons like face painting and a piñata are available. A two-hour party starts at $450 for up to ten children.

Sportime
2571 Quogue-Riverhead Road
East Quogue, NY 11942
631-653-6767

This tennis center runs popular day camps in summer, and lessons year-round. The spacious facility provides lots of options for parties. Children ages 4 and up can choose from a variety of themes, including multi-sport, tennis, rock climbing, dance or swimming. Party packages include invitations and thank you cards, pizza, beverages, paper goods and favors. Pricing varies for members and non-members, and starts at $325 for a 90-minute party for up to 12 children.

Photo courtesy of Goat on a Boat.

The All Star
96 Main Road
Riverhead, NY 11901
631-998-3565

The East End's newest bowling alley is also a great place for a party. The All Star features a full restaurant menu, a six-lane private bowling lounge and separate event space. There is also an arcade for kids once they've had their fill of bowling. Guests should call for pricing.

Goat on a Boat
4 Hampton Street
Sag Harbor, NY 11963
631-725-4193

The Goat on a Boat puppet theater offers space, table and chairs, balloons, a puppet show of your choice and either Circle Fun or a Disco party. You provide the food, drink, paper goods and cake. There is also the option to host in your home or another venue, with Goat on a Boat bringing the show to you. Call for rates and availability.

The Long Island Aquarium
431 East Main Street
Riverhead, NY 11901
631-208-9200

If you want to "make a splash" at your child's next birthday, consider the Long Island Aquarium. Party packages include full-day aquarium admission for all guests, a guided tour of the aquarium, invitations, aquatic-themed party ware and a party hostess. Food packages vary, and add-ons like mascot photos, game-room cards, arts and crafts and other activities are available. Prices start at $14.95 plus tax per person for a cake-only party, and there is a 30 person minimum, adults and children combined.

Children's Museum of the East End
376 Bridgehampton/Sag Harbor Turnpike
Bridgehampton, NY 11932
631-537-8250

The CMEE allows young children to explore and learn through play. It offers a variety of party options, including princess and pirate themes where kids get to dress up and pretend. All party packages include all-day admission to the museum. Price is available upon request.

The Castle at Westhampton
59D Montauk Highway
Westhampton, NY 11977
631-998-3620

If you have ever driven along Montauk Highway in Westhampton and passed the castle in front of Casa Basso restaurant, you may have wondered, What is that? Well, it is indeed a miniature castle, originally built as an Inn in the early 1900's by renowned sculptor Theophilus Brouwer. Today, it is a private event space which hosts princess playdates, bridal showers and themed parties for children. You can choose from the Deluxe Princess Party, the Pirate Party or the Pop Star Paparazzi Party. Packages include costumes, games, food, tattoos, arts and crafts and tons of add-ons. Note that the space is relatively small, so the limit on party guests is 12. The basic princess and pirate 90-minute party begins at $499 for up to 12 children.

Studio Art
22 Sunset Avenue
Westhampton Beach, NY 11978
631-998-0563

and 

670 Montauk Highway
Water Mill, NY 11976
631-726-5500

If you have a crafty kid, Studio Art is the place for his or her next party. There are too many themes to list here, but the list includes Art Adventure, design your own PJs or sneakers, Fairy Princess, Skateboard, Perfumania, Charm Bracelet, Super Hero and so much more. All parties include two hours of private space, music and dancing, all art materials, food and beverage, paper goods and invitations that can be downloaded directly from the website. The basic party package starts at $400 for eight children, $19 for each additional child. Pricing goes up depending on the type of craft project selected.

The Safari Adventure
1074 Pulaski Street
Riverhead, NY 11901
631-727-4386

Safari Adventure offers a party package for every budget. Party guests explore the climbing structures and receive tokens to use on the arcade games. All packages include a private party room and hostess, paper goods, food and beverages and a safari-themed cake. Packages start at $350 for 12 adventurers on a weekday; on weekends and holidays, the basic package is $399.

The Green School
Sagaponack, NY 11962
631-537-1634

The Green School was created by Art Farm founder Mari Linnman and offers nursery and pre-nursery classes. Recommended for ages 2 - 7, birthday parties are eco-friendly and creative, with themes like Exotic Animal Show, on the Moove (petting zoo), Farm party and Little Chef's. Party packages include invitations and favors, a PigCaso T-shirt for the birthday child, food and beverage, art project, goody bags, themed paper goods and biodegradable balloons. The basic farm party package is $675 for 12 children; pony rides are an additional $100.