When it comes to campground amenities, this waterpark campground is the most unique of them all in Northern California.
Situated in Shasta National Forest, you can stay and play at Lake Siskiyou Camp Resort. Rent a cabin, bring your RV, or pitch a tent and slide, bounce, and climb in the Slash Zone set up on Lake Siskiyou.
There's also boat, canoe, paddle board, and kayak rental onsite. And no matter how you spend your time on the water, you can see Mount Shasta in the distance.
Get more info here.