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NOW OPEN • JANUARY 2026

Sin Ice Stir Waikiki: The Complete Guide to Chef-Curated Shave Ice

44 housemade syrups, chef-curated flavor combinations, and ocean views on Kalakaua Avenue. Here's everything you need to know.

10 min read

Sin Ice Stir shave ice shop storefront entrance with blue neon lighting on Kalakaua Avenue in Waikiki
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📍 Quick Facts

Address

2570 Kalakaua Ave, Honolulu (Twin Fin Hotel)

Hours

Daily 10:00 AM – 10:00 PM

Hours last updated from Google: Apr 29, 2026

Price

$10 per item (all items same price)

Payment

Card only (no cash) • Apple Pay accepted

Parking

Free at Kapiolani Park • Zoo lot ~$1/hr

Instagram

@sinicestir

🗺️

View Sin Ice Stir on the Food Map

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Forget everything you know about ordering shave ice in Hawaii. No more staring at a board of 40+ syrups trying to figure out which three flavors won't taste weird together.

Sin Ice Stir (pronounced "sinister") just opened on Kalakaua Avenue, and they're doing something completely different. Owner Bill Tobin — who also owns Tiki's Grill & Bar upstairs — brought in his executive chef to create a curated shave ice experience.

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What Makes Sin Ice Stir Different?

Sin Ice Stir housemade syrups in bottles with shave ice being prepared behind the counter
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Here's how Bill explained it to us:

"A lot of shave ice places have 40 different flavors on the wall. If you put three flavors together, they might sound really good, but when you put them on the shave ice and they mix together at the bottom, it might be really sweet but it might not be good. We specifically picked flavors that taste delicious on the ice but also when you get down to the bottom and those flavors mix together. We've tested everything."

The flavors were developed by Chef Ronnie Nasuti — Executive Chef of Tiki's Grill & Bar — and Chef Vanessa Mello. They created 44 housemade syrups and designed each shave ice as a complete recipe.

Every recipe starts the same way: shave ice layered over an ice cream base. Then comes the chef-selected syrups and toppings.

Nice vs. Naughty: Understanding the Menu

Sin Ice Stir interior showing the Nice logo on gradient blue wall with red and blue metal chairs
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The menu is split into two personalities — a nod to the original concept, which was going to be a bar with shave ice. As Bill told us:

"Even though we say 'naughty,' it's a good kind of bad. Nobody's going overboard with anything — we're just having fun."
😇

NICE (Blue)

Flavors that people are mostly familiar with and comfortable with. Easily approachable. Example: Soft Launch is strawberry matcha — people are very familiar with that.

😈

NAUGHTY (Red)

A little more adventurous, a little more extreme. Example: The Wanted is spiced mango and li hing guava — familiar tropical fruits with added spices to make them more adventurous.

What to Order at Sin Ice Stir

Shark Bait rainbow shave ice with blue vanilla lillikoi strawberry syrups gummy sharks mochi balls from Sin Ice Stir
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We asked Bill what he recommends for first-timers:

"We would say Shark Bait if they're not very adventurous. If they're adventurous, we would say try Adult Supervision. It's delicious — it's made with Froot Loops and has a Froot Loop flavor but also lavender honey."
🏆Editor's Choice — First-Timers

Shark Bait

Start here. It's the most popular for a reason — rainbow colors for the 'gram, gummy sharks for fun, and flavors everyone loves.

🔥Bill's Pick — Adventurous

Adult Supervision

The owner's personal favorite. Bill says it's delicious — Froot Loop syrup with lavender honey. Only available through January!

💡 Pro tip from Bill: "We recommend people try the seasonal flavors before the end of January because they won't be available in February."

Shark Bait shave ice held up with Waikiki ocean palm trees and blue sky in background
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🗺️

Plan Your Visit

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Location, Hours & Parking

Sin Ice Stir outdoor seating area with ocean view colorful metal chairs palm trees on Kalakaua Avenue Waikiki
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Sin Ice Stir is located at the Twin Fin Hotel on Kalakaua Avenue, right across from Kapiolani Park and the ocean. As Bill described it:

"It's a beautiful view every day. We're looking at our customers but we also get to look out at the ocean and see surfers, people swimming, boats going by, and the waves. It's really nice."
Parking OptionCostDistance
Kapiolani Park (street parking)Free5-minute walk
Honolulu Zoo Parking Lot~$1/hourRight across street

🚻 Restrooms: Available upstairs in the Twin Fin Hotel pool lobby. Take the stairs around the corner from the shop.

📍

Get Directions to Sin Ice Stir

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Frequently Asked Questions

Where is Sin Ice Stir located?
Sin Ice Stir is located at 2570 Kalakaua Avenue in Waikiki, inside the Twin Fin Hotel. It's on the ground floor facing Kalakaua Avenue, across from Kapiolani Park and the ocean.
What are Sin Ice Stir's hours?
Sin Ice Stir is open daily from 10:00 AM to 10:00 PM, seven days a week.
How much does shave ice cost at Sin Ice Stir?
All shave ice at Sin Ice Stir costs $10. Every item comes with shave ice layered over an ice cream base, housemade syrups, and premium toppings.
Does Sin Ice Stir accept cash?
No, Sin Ice Stir is cashless. They accept credit cards, debit cards, Apple Pay, and other tap-to-pay methods only.
What should we order at Sin Ice Stir?
For first-timers, order the Shark Bait ($10) - it's the most popular with rainbow colors, gummy sharks, and classic Hawaiian flavors. For adventurous eaters, try Adult Supervision ($10) with Froot Loop syrup and lavender honey - it's the owner's favorite.
Who created the Sin Ice Stir menu?
The menu was created by Chef Ronnie Nasuti (Executive Chef of Tiki's Grill & Bar) and Chef Vanessa Mello. They developed 44 housemade syrups and designed each shave ice combination to taste delicious from first bite to the melted syrup at the bottom.
What does 'Sin Ice Stir' mean?
Sin Ice Stir is pronounced 'sinister' and reflects the shop's dual personality - 'Nice' flavors (approachable, familiar) and 'Naughty' flavors (adventurous, unexpected). The concept came from the original plan to open a bar with shave ice.
Is there parking near Sin Ice Stir?
Yes! Free parking is available at Kapiolani Park (5-minute walk). The Honolulu Zoo parking lot charges approximately $1 per hour and is right across the street.
Does the Sin Ice Stir menu change?
Yes, Sin Ice Stir rotates 4 seasonal flavors monthly while keeping 4 classic flavors year-round. January flavors end on January 31st, and new February flavors launch on February 1st.
What makes Sin Ice Stir different from other shave ice shops?
Unlike shops with 40+ syrups where you pick random flavors, Sin Ice Stir offers chef-curated combinations. All 44 syrups are made in-house, and each recipe is designed so flavors taste good together - even when they mix at the bottom.
What is the difference between Nice and Naughty on the menu?
The blue 'Nice' items have approachable, familiar flavors that most people are comfortable with. The red 'Naughty' items are more adventurous with unexpected flavor combinations. For example, Soft Launch (Nice) is strawberry matcha, while The Wanted (Naughty) is spiced chamoy mango with li hing guava.
Does Sin Ice Stir have caffeine options?
Yes! Soft Launch contains malt matcha, and Mood Ring has butterfly pea tea - both provide caffeine. Future rotating menus will include coffee-flavored options.
Is there a restroom at Sin Ice Stir?
Restrooms are available upstairs in the Twin Fin Hotel pool lobby. Take the stairs around the corner from the shop.
Who owns Sin Ice Stir?
Sin Ice Stir is owned by Bill Tobin, who also owns Tiki's Grill & Bar located upstairs in the same building (Twin Fin Hotel).

Final Verdict

Sin Ice Stir storefront with customers enjoying shave ice at colorful outdoor tables in Waikiki
NateEatsHawaii

Sin Ice Stir delivers on its promise. The chef-curated approach means you don't have to worry about whether flavors will work together — they've already tested everything.

At $10, it's not the cheapest shave ice in Hawaii, but you're getting housemade syrups, an ice cream base, premium toppings, and a Kalakaua Avenue ocean-view location. For what you get, it's fair.

As Bill put it: "We're not your grandma's shave ice. This is new. This is adventurous. And we think you're gonna like this even better."

Bottom line: If you're in Waikiki and want shave ice, Sin Ice Stir should be your first stop. Order the Shark Bait, grab a seat facing the ocean, and enjoy.

More Waikiki Food Guides

Nate from NateEatsHawaii holding Shark Bait shave ice throwing shaka sign in Waikiki
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Written by the NateEatsHawaii Team

We've reviewed many restaurants across Oahu. Have questions? DM us @nateeatshawaii

Last Updated: April 17, 2026

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