Wacky Seafood Boil
Snow crab, shrimp, mussels, and corn tossed in our homemade Cajun sauce. The boil the valley talks about.
Yakima Valley · Since 2021
Wacky Crab Shack
Fresh seafood. Bold flavors. Family fun.
Louisiana-style seafood boils and Sinaloa-inspired plates in Union Gap, WA. Fresh crab, shrimp, crawfish, and lobster, tossed in Mom’s homemade Cajun seasoning and served the way the Yakima Valley’s been asking for.
Open daily · 11 AM
1601 E Washington Ave · Union Gap, WA
Family-owned and locally run since 2021
Fresh seafood prepped daily, in-house
Louisiana-style boils and Sinaloa-inspired plates
Made with Mom's homemade Cajun seasoning
Our Story
Family boils. Bold flavors. All the fun.
Wacky Crab Shack started in 2021 as a family dream — Louisiana-style seafood boils meeting Sinaloa-inspired seafood plates, both finished with Mom’s homemade Cajun seasoning. What began on 1st Avenue in Yakima grew into the bigger, splashier beach-shack space we run today in Union Gap.
We prep the seafood daily, run the kitchen ourselves, and treat every guest like they’re coming to a family cookout on the coast — bibs on, sleeves rolled, big trays in the middle of the table.
Est. 2021
Signature dishes
The plates the valley talks about.
A quick tour through the shack’s most-ordered plates — from the flagship snow-crab boil to the fresh-daily ceviche and the drinks that make it all sing.
Crispy Shrimp Tacos
Golden crispy shrimp, slaw, pico, and our creamy shack sauce on warm corn tortillas.
Shrimp Ceviche
Fresh shrimp, avocado, pico, and citrus — served cold on a bed of crispy tortilla chips.
House Michelada
Chili-rimmed, garnished with celery, cucumber, and pineapple — plus a little red crab for luck.
On the menu
A little Louisiana, a little Sinaloa, all fresh.
Nine full categories on the menu — boils, plates, tacos, appetizers, drinks, and more. Here’s the map.
- Louisiana-style, made to share.
Seafood Boils
Louisiana-style seafood boils with crab, shrimp, crawfish, lobster, and combos — tossed in Mom's homemade Cajun seasoning.
Explore - The shack's greatest hits, on one plate.
Wacky Combos
Our signature combo plates — pair seafood boils, tacos, plates, and sides for one shareable feast.
Explore - Sinaloa-inspired specialties, plated up.
Seafood Plates
Seafood entrées with a Sinaloa twist — camarones a la diabla, aguachiles, mojarra, and specialty plates.
Explore - Kick it off shack-style.
Appetizers & Starters
Nachos, seafood cocktails, and shareable seafood snacks to start the meal.
Explore - Piled high, crunch and all.
Loaded Nachos
Crispy tortillas piled with seafood, cheese, cream, avocado, and the shack's signature toppings.
Explore - Feed the whole crew.
Family Meals
Big family packs — boils, plates, and combos sized to feed the whole table.
Explore - Little hands, big flavor.
Kids Menu
Kid-friendly picks — mild shrimp, fish plates, and simple sides for the little crew.
Explore - Chili-rimmed, ice-cold, ready.
Drinks & Micheladas
Micheladas with a crab-pick garnish, fresh aguas frescas, Mexican sodas, and ice-cold buckets of beer.
Explore - Sweeten the end.
Desserts
Rotating sweet finishes — flan, tres leches, and other family favorites.
Explore
Visit the shack
Union Gap · Yakima Valley
1601 East Washington AvenueUnion Gap, WA 98903
A family-owned seafood shack in Union Gap, WA, serving the Yakima Valley — from Yakima and Union Gap to Selah, Terrace Heights, Moxee, Sunnyside, Grandview, and every town in between.
Monday 11:00 AM – 8:00 PM Tuesday 11:00 AM – 8:00 PM Wednesday 11:00 AM – 8:00 PM Thursday 11:00 AM – 8:00 PM Friday 11:00 AM – 9:00 PM Saturday 11:00 AM – 9:00 PM Sunday 11:00 AM – 8:00 PM
Loved locally
What our customers are saying
Rated 5 stars by happy customers on Google
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Best seafood boil in the Yakima Valley — the Cajun seasoning is unreal, and the portions are huge. We came for a birthday and the whole family loved it.
M Maria G. Reviewed on Google -
The aguachile and the Michelada are a perfect pairing. Feels like home cooking with real Sinaloa flavors. Staff is super friendly too.
C Carlos R. Reviewed on Google -
Loaded nachos are massive and the shrimp tacos are so crispy. Great atmosphere for kids — the dolphin mural was a hit with my nephew.
J Jessica L. Reviewed on Google -
Snow crab boil tossed in their signature seasoning is what I keep coming back for. Nothing else in Union Gap comes close.
A Anthony M. Reviewed on Google -
We ordered catering for a work event and everyone raved about it. The team made it easy — the seafood arrived hot, fresh, and beautifully plated.
P Priscilla V. Reviewed on Google -
The ceviche is the freshest I've had around here. Big flavors, fair prices, and one of the friendliest crews in the valley. 10/10.
D Dominic H. Reviewed on Google
Leave a Google Review
Your review helps other Yakima Valley families find the shack.
FAQ
Answers before you head over
What is Wacky Crab Shack?
Wacky Crab Shack is a family-owned seafood restaurant in Union Gap, WA, serving Louisiana-style seafood boils and Sinaloa-inspired seafood plates in the Yakima Valley since 2021. The menu features crab, shrimp, crawfish, and lobster boils, ceviche, loaded nachos, shrimp tacos, and family combos — all made with Mom's homemade Cajun seasoning.
Where is Wacky Crab Shack located?
Wacky Crab Shack is located at 1601 East Washington Avenue, Union Gap, WA 98903, just south of Yakima and easy to reach from anywhere in the Yakima Valley. The restaurant relocated to Union Gap in 2024 after opening on 1st Avenue in Yakima in 2021.
What are Wacky Crab Shack's hours?
Wacky Crab Shack is open every day: Sunday through Thursday from 11:00 AM to 8:00 PM, and Friday and Saturday from 11:00 AM to 9:00 PM. Dine-in, takeout, and online ordering are all available during open hours.
Can I order Wacky Crab Shack online?
Yes. Order Wacky Crab Shack directly through Toast for pickup or delivery at order.toasttab.com/online/wacky-crab-shack-new-1601-east-washington-avenue, or use DoorDash and Uber Eats. The direct Toast link is the fastest way to place a takeout or pickup order.
Does Wacky Crab Shack cater?
Yes. Wacky Crab Shack caters corporate events, birthday parties, family gatherings, school events, and community celebrations across the Yakima Valley. Send a catering inquiry through the /catering page or call the restaurant to plan a menu and get a quote.
What kind of seafood does Wacky Crab Shack serve?
Wacky Crab Shack serves fresh seafood boils (crab, shrimp, crawfish, lobster, and combos), Sinaloa-inspired seafood plates like camarones a la diabla and aguachiles, appetizers including ceviche and loaded seafood nachos, shrimp tacos, and family-sized combos. Everything is prepped daily and finished with the family's homemade Cajun seasoning.
Ready when you are