There's not many pools or water parks with large water slides in WA. Other than going to Wolf Lodge and paying hundreds of dollars for a weekend. The Bainbridge Aquatic center is a great day trip where your kid can slide down a 180-foot water slide, float in a lazy river, and other water park activities. It's indoors and only charges $5 for adults, $4 for 3-17, and free for 2 and under. You don't need to live on the Island to enjoy this.
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