The World's #1 Slime Experience

Boston is Getting a Major MOO

17,000 Square Feet of Slimey Play

Get Slimed with Us

Squeeze the #Satisfying

One of the Best Indoor Activities in Boston for Kids and Kids-at-Heart

Step into Sloomoo Institute Boston, a world of slimey joy, just north of Faneuil Hall. Stretch, squeeze, and squish through slime textures, immersive colors, and soothing ASMR. Unleash your inner artist and design your dream slime at the world’s largest DIY Bar, explore #satisfying slimescapes, and embrace endless moments of connection in Boston.

Located in the former Hard Rock Cafe, Sloomoo Institute is a must for families, friends, and groups on the hunt for fun things to do in Boston.

Explore Ticket Options

All tickets include a custom slime you design at our DIY Bar (4M+ combos!). Add upgrades to level up your experience, get slimed, and more!

Our #Satisfying Slimescapes

We modify our experience and limit the number of tickets, so the space is less crowded, calmer, and quieter.

Sensory-Friendly Hours

We modify our experience and limit the number of tickets, so the space is less crowded, calmer, and quieter.

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Sand Doons

Sink your hands into the most #satisfying sand.

Lake Sloomoo

This is where Sloomoo (the character) vacations. Walking on 300 gallons of slime feels like a spa. Wipes will keep your feet and the slime clean.

LooMoosh’s Magnificent Slime Mold

Embrace the science of slime mold (it’s not mold and it’s not slime). Jump on lily pads to create a community of LED lights (and learn about these single-celled organisms).

Gift Cards

Give the gift of joy! Get a digital gift card for any of Sloomoo’s in-person experiences.

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Stop and smell the flowers. V.I.B.E.S. (very intensely beneficial energizing scents) is a journey of 60 scents at our DIY Bar. Pick one for your custom slime.

Scentscapes

Stop and smell the flowers. V.I.B.E.S. (very intensely beneficial energizing scents) is a journey of 60 scents at our DIY Bar. Pick one for your custom slime.

Shop!

Your one-stop shop for all things slime - supplies, kits, and handmade creations - along with cool merch, squishies, sensory toys, and more.

Design your dream slime with 8 textures, 60 scents, 40 colors, 120 charms. Over 4 million unique combinations. Get creative and unleash your inner artist.

The DIY Bar

Design your dream slime with 8 textures, 60 scents, 40 colors, 120 charms. Over 4 million unique combinations. Get creative and unleash your inner artist.

A sonic journey of slime in day glow. Every slime you touch triggers music - the synth, drums, cowbell, amongst others.

Groov's Groovy Grove

A sonic journey of slime in day glow. Every slime you touch triggers music - the synth, drums, cowbell, amongst others.

Take a super fun quiz and find your Sloomooo bestie for life.

Sloomoo Sidekick

Take a super fun quiz and find your Sloomooo bestie for life.

Delve into the magic of a sandy "Sloomalgimation" - moldable, playable sand that sticks to itself, not you.

#Satisfying Sand

Delve into the magic of a sandy "Sloomalgimation" - moldable, playable sand that sticks to itself, not you.

When you shut off one sense, you heighten another. Slip on our eye mask and feel your way through our character, FrooFroo's favorite things.

FrooFroo's Feels

When you shut off one sense, you heighten another. Slip on our eye mask and feel your way through our character, FrooFroo's favorite things.

Slingshot Slime

Yup! Slingshot slime at someone! Your mom, teachers, boss, kids, BAM!

Upgrades

Sloomoo Falls

Get Slimed at Sloomoo Falls! We provide the poncho, the hype, the music, the slime. Live out your fantasy. Lights, camera, SLIME!

DIY Bar EXTRAS!

Craft mini sculptures with pillowy air dry clay - then mush it into your slime. We have cute, creative kits at the DIY Bar.

Flexible Arrival Ticket

If you don’t want to be pinned down to an exact time, this gives you the flexibility to arrive any time on the day of your ticket.

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Slime Making Classes

Learn how to make the best slime from scratch at Sloomooversity.

Feel the Joy, Boston!

BUY

Boston

Tickets

Location and Travel Tips

ADDRESS

22-24 Clinton Street

Boston

02109

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WHAT TO WEAR

Wear play clothes!
Think pants and shirts with sleeves you can easily roll up.
Leave your favorite shoes at home.
For those with long hair, we recommend wearing it back.
Our slime is easily removed with white vinegar and water.

TRAVEL TIPS

EXPERIENCE & SHOP HOURS

For experience days and times, please check our ticketing platform.

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Getting here: Sloomoo Institute is just north of Faneuil Hall in the former Hard Rock Cafe, located at 22-24 Clinton Street in Boston, MA.

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Parking: Paid Parking is available upstairs at LAZ Parking - Dock Square Garage.

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Sloomoo & You

Unique Things to Do in Boston with Kids

Looking for indoor activities in Boston that the whole family will love? Sloomoo Institute offers a playful, hands-on experience where kids design their own custom slime, and adults feel like kids again as they explore colorful slimescapes in Faneuil Hall Marketplace. Whether you’re planning a birthday celebration, a private event, an at-home experience, or a family outing in Boston, Sloomoo invites everyone to play and connect.

BUY

Boston

Tickets

Sloomoo Institute
is coming to Boston!

Join the early access list to be one of the first to slime with us.

Young boy stretching yellow slime at a colorful interactive slime station.

Three children smiling and stretching a large pink slime together indoors, with colorful wall art in the background.

The World's #1 Slime Experience!

We're sliming our way to 22-24 Clinton Street. Get your hands on never-ending textures of handmade slime. Design your dream slime at our iconic DIY Bar (choose from 8 textures, 40 colors, 60 scents and 120 charms - over 4 million combos!). Walk through slime. Sink into #satisfying sand. Even get slimed! Plus, new interactive slimescapes!

Fans Are Saying

"Amazing experience! Each station was so #satisfying for the senses, and the slime shower was a highlight. Creating our own slime after trying all the samples was the perfect finale. Friendly staff made it even better. Highly recommend it!"

Suresh S

"We had a blast with kids from 6 to 13, and the adults loved it too! The kids got “slimed,” it was hilarious, and the slime bar for DIY creations was unforgettable. The whole staff was amazing, what a memorable, must-do experience!"

Kim C

"An awesome experience from start to finish! The kids were blown away. The staff’s is super fun and full of good energy. They made everything better."

Rashan T

"What a neat experience! Even my teenager said this was the coolest thing she’s done in ages! From making slime names to exploring rooms of textures, every step was fun. Creating our own slime with scents, colors, and charms was the perfect finale. A must-do for families!"

Dana S

"My 3-year-old and I had the best time! The staff was so sweet, friendly and patient, especially in the slime-making room. We stayed longer than expected because we were having so much fun. Love the slime, love the staff—10/10!"

Alicia K

"We drove in from San Antonio and it was worth it! My husband, son, and even my 84-year-old mom had an amazing time. You leave with your very own slime creation and a slime name. Definitely a fun experience for all ages!"

Rebecca Q

“Such a fun day! even my teens (16 & 11) loved it! We had plenty of hands-on time, explored at our own pace, and enjoyed all the textures and scents. The staff were so helpful and friendly. We would come back in a heartbeat and recommend this place for all ages.”

"We celebrated my daughter’s birthday here and it was a blast! From slime pools to making our own slime creations, every room offered something different, sparking laughter and creativity. The staff’s energy made it even better, and we left with smiles, memories, and slime to take home. Perfect for birthdays or a family day out!"

Justin S

Planning Your Visit to Sloomoo Institute Boston

Can I still visit Sloomoo MiniMoo Boston?

Yes! MiniMoo Boston is open for walk-up visits through October 25. Tickets are available on-site.

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Do you need tickets for Sloomoo Institute Boston?

Yes. Tickets are required for entry and can be reserved online in advance. Booking ahead helps secure your preferred date and time as well as a lower price.

Does Sloomoo Institute Boston host birthday parties?

Yes. Sloomoo Institute Boston offers birthday party experiences for kids and families. Guests design their own slime, explore the space, and celebrate in a uniquely fun environment with a private birthday party room. For those looking for birthday party venues in Boston, Sloomoo Institute is a one-of-a-kind, memorable experience near Faneuil Hall.

What is there to do near Faneuil Hall?

Sloomoo Institute is located near Faneuil Hall in the former Hard Rock Cafe, making it one of the most unique things to do near Faneuil Hall. Stop in before or after exploring the marketplace, the waterfront, or nearby Boston attractions for a the best, #satisfying slime experience the whole family will love.

Is Sloomoo Institute one of the indoor activities in Boston for kids?

Yes. Sloomoo Institute is an indoor experience in Faneuil Hall. Families often visit when looking for fun, indoor activities in Boston, where kids and adults spend time playing, creating slime, and enjoying a colorful, hands-on environment together.

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Where is Sloomoo Institute Boston located?

Sloomoo Institute Boston is located at 22-24 Clinton St near Faneuil Hall Marketplace. It’s a playful, indoor destination in the heart of Boston, where guests explore slimescapes, design a custom slime, and enjoy a hands-on sensory experience.

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