Looks like you have your answers,.. But. If they are full, and shouldn't be. "Lake Sylvia" State Park is very nice. Very secluded feeling. You can view it of course on Google Maps. And just 30minutes from the ocean ☺
What Frank said
Reserve online at Https://Parks.state.wa.us
Online is the best way to go. You can also call but you may have to wait for a callback missing the chance of getting one before someone else.
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