Reserve Now
Halloween Weekends
September 22 - October 29
Why stay with us?
Visit a place where family fun is the main attraction and memories are waiting to be made. Jellystone Park™ Williamsport, MD is an award-winning Maryland campground with a water park located a short distance away from D.C. It’s not just a campground, it’s Jellystone Park™! 
Plus, only 50% down is required to book on all future bookings - allowing you s'more flexibility!
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Halloween Weekends
BOO! Don't miss out on this fangtastic family experience!
View All Halloween Events
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Things to Do
Check out our Water Zone, water slides, pools, lazy river, jumping pillow & pad, mini golf, and more! Bonus - almost all attractions are FREE with your stay!
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Concrete pads, full hook-ups, buddy sites, and pull-thru options await you!
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Free nights, big discounts, and more! Stay and save all season long with our awesome deals!
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Discover our exciting themed events happening all season long!
Your Next Family Adventure
Located along Maryland’s western scenic foothills, Yogi Bear’s Jellystone Park™ near Williamsport, Maryland, offers an unforgettable east coast camping experience the whole family will enjoy. Situated just down the road from historic landmarks such as the Antietam National Battlefield and breathtaking scenery along the Appalachian Trail, Jellystone Park™ Williamsport is the perfect “home-base” for those wanting to explore the area. When our campers aren’t busy swimming and splashing at the Water Zone, zooming down our 400-foot water slides, or relaxing in our lazy river, they can test their skills at the ninja course, play a round of mini golf, jump high to the sky on the jumping pillow & pad, and so much more!
Open: March 31 - November 26
Peak: June 9 - August 19