Jellystone Park™ Mark Twain Lake & The Water Zone

Monroe City, MO

3.7(785 reviews)

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About this campground

Jellystone Park™ Mark Twain Lake & The Water Zone is a premier, high-energy family camp-resort situated near the beautiful shores of Mark Twain Lake in Monroe City, Missouri. Located roughly 20 miles west of historic Hannibal, this bustling destination caters to RVers, tent campers, and large groups with its wide array of full-hookup sites, camping cabins, and a massive 16-person Lakeside Lodge. The defining highlight of the property is The Water Zone, an action-packed waterpark featuring a lazy river, a wave pool, and thrilling waterslides that are fully included with every single overnight stay. Packed with non-stop entertainment, character visits from Yogi Bear™, mini-golf, and themed weekends, it perfectly balances outdoor recreation with excellent creature comforts like high-speed Wi-Fi and cable TV.

What campers say

Jellystone Park Mark Twain Lake offers a lot for families — organized activities, putt‑putt and a busy waterpark that many guests enjoyed. Experiences are mixed: some visitors praise friendly staff and a well-kept campground, while others report maintenance and cleanliness problems (leaky cabin AC/showers, broken or closed waterpark features, bugs and untidy bathrooms). Some guests also mentioned lifeguard inattentiveness and safety concerns around splash areas. Additional fees and wristband charges for activities are commonly noted. It can be a fun, activity-packed stay for kids, but plan ahead, confirm open amenities, and expect variable upkeep.

Our summary of 785 traveler reviews.