Costco's "Floatzilla" Is Way Cheaper Than a Waterpark—And Twice as FUN

Jun 07, 2025

Why doesn't every pool float have a swim-up section?

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This summer, we’re all about making the best of our own backyards at HB. From chic outdoor furniture that transforms our patios to sun blinds that protect us from harsh rays, anything that makes the home feel like an escape is welcome. Costco’s summer offerings have been our not-so-secret weapon. I mean, how could we say no to an inflatable water park for the kids or a party pavilion for the adults? Both of those are major investments, though, so if you wanted something a little more budget-friendly, we’ve got you.

Costco's “Seas the Day” inflatable island is made for big families to have fun in the sun together. At over 12 feet wide, it can seat up to seven adults at once. Most importantly, there’s a removable sunshade AND a lumbar pillow backrest included. So you won’t have to contend with a gnarly sunburn after relaxing on the water. Take the party out on the lake or pool with cup holders and built-in drink coolers. You don’t have to skip out on your float to enjoy your favorite cocktail or a poolside snack. There’s even a swim-up section for easy re-entry.

“This float comfortably fit me and my five friends for several hours of floating down a river,” one reviewer wrote. “Would recommend for anyone looking to have a good time on the water!” At under $200, we promise the “Seas the Day” float is cheaper than any resort stay or country club membership. And it even comes with a repair patch, so a little hole won’t spoil the party.

Whether your summer plans involve a private pool or a trip to the lake, get ready to be the coolest people on the water. And just in case your local Costco doesn't have the "Seas the Day" in stock, we found a couple more inflatable islands you can shop for, so you don't miss out on the fun.

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