Our family recently stayed at Jellystone Park at Mark Twain Lake and while there were some positives, overall I left feeling disappointed—particularly with the condition and supervision of the waterpark area.To start with the positives: the campground staff themselves were friendly, accommodating, and pleasant to interact with throughout our stay. We appreciated their willingness to help when needed.Unfortunately, the overall upkeep of the property did not match expectations. The landscaping appeared neglected in many areas and several campsites felt unmaintained and less inviting than expected.My biggest concern was the waterpark, specifically both maintenance and safety. There were multiple areas that appeared unsafe and in need of immediate attention. Several railings were noticeably loose and wobbly, to the point that they appeared close to coming unscrewed. There was also an electrical box near the pool area left open and exposed. Extension cords just sitting around. Additionally, a support beam above the lazy river that appears to contain electrical casing looked significantly rotted and concerning from a structural standpoint.Beyond maintenance concerns, the level of lifeguard attentiveness was troubling. During our visit, lifeguards were frequently wearing AirPods while on duty, and in some cases appeared to be using their phones and watching videos while monitoring waterslides. This created the appearance that attention was divided and raised serious concerns about emergency response readiness. Lifeguards should be actively observing guests and able to hear and respond immediately if assistance is needed. This did not inspire confidence in the safety of the water attractions.Additionally, smaller amenities were not consistently maintained—such as putt putt, where golf balls were repeatedly unavailable. The water balloon zone was not even up and working as bird nests were built inside the tipped over structure.If certain areas are not going to be available for guests to use, it would only be fair that you update the website, letting them know.We chose this campground expecting a fun and safe family experience and left feeling disappointed, primarily because of conditions that seemed preventable with better maintenance and supervision. I hope management takes these concerns seriously, as the park has potential and the staff interactions showed positives, but improvements are needed to create the experience the is marketed on your website that guests expect and deserve.
Anonymous
•
Jun 15, 2026
3.0/5
3.0/5
Sadly the park is not well kept. Most things broke, trash everywhere, electrical box’s wide open, trees and weeds growing in places they shouldn’t… we love coming but definitely think there needs to be some work put back into this place
Anonymous
•
Jun 15, 2026
2.0/5
2.0/5
I have been to this campground numerous times through the past 10 years. All but two visits were with previous owners. I was hopeful that Jellystone would start to take care of it and bring it back to life. This was our first stay at an RV site and it was fine, beside there wasn’t any water by our electric and sewer so we had to use it from the opposite side of our trailer. However, a friend rented a cabin and couldn’t even stay. They were full of bugs and mold. There was a hole in the floor in bathroom, bacon under the fridge, and it was “just cleaned” specifically for her since her first cabin was inhabitable. The cleaner left all their supplies, but yet didn’t clean anything. She was given a full refund, but had some very disappointed kids. The shower house and restrooms were so filthy and didn’t have any soap to wash your hands. The place is falling apart, multiple buildings were in disrepair. No one supervises the activities and so many people were not following safety rules which caused my son to get hurt. The roads are full of pot holes, the waterpark water looks dirty. The one slide isn’t working and the zero entry baby splash pad isn’t being used. The lifeguard at the red and white slide was not even paying attention to when kids came into the water and when they got out. The tiki bar didn’t have any frozen drinks. You couldn’t use a card to pay at the bar or sweet shop and had to wait in another line to pay at the snack shack. The staff was friendly. The ranger station was also lacking in necessities if you forgot something, but had plenty of branded merch as well as toys and gadgets for kids.
Anonymous
•
Jun 15, 2026
5.0/5
5.0/5
We all had a great time weather was perfect cabins we're comfortable
Anonymous
•
Jun 15, 2026
1.0/5
1.0/5
We camped here in 2021 and it was amazing the foam party was awesome compared to whatever paycuts yall did this time around. The waterpark was way ran down. I will say the kids working were nice and had good attitudes. We will drive the extra hour illinios location was by far way better!
Anonymous
•
Jun 15, 2026
1.0/5
1.0/5
Look at Google review or call me since ive been in the office and left my number. Ill also be calling corporate if not. This is unacceptable for a jellystone affiliation after the amount of one's ive stayed at.
Anonymous
•
Jun 15, 2026
4.0/5
4.0/5
Everyone enjoyed themselves overall. Some staff had no information when asking questions, had to go find someone regarding items missing from cabin and finally got to the right person that helped us, few activities were changed but app was not updated so we missed and during check in staff didn't provide info on where things were, things to watch for, etc. They gave keys and sent on our way. Had to ask several questions and then stopped after they couldn't answer. We will return but staff could use some additional training on basic items.
Anonymous
•
Jun 15, 2026
5.0/5
5.0/5
We loved our Lot #138! Thinking of becoming seasonal campers. Denise was great help for another upcoming stay we have in July! She also provided all the information we need as far as seasonal camping information.
Anonymous
•
Jun 15, 2026
3.0/5
3.0/5
Roads in bad shape. All the plugs at the rv site did not work so we could not charge our rented golf cart. Cafe staff gaslight us into thinking their errors were ours. Lifeguards at the water park did not pay attention. Another visitor had to help a child and finally the guard noticed after others were yelling because they were on their phone. We will not be back.
Anonymous
•
Jun 15, 2026
2.0/5
2.0/5
Cabin was so dirty. Bed was hard and had hair everywhere and dirt. The loft had cuss words written on the ceiling. The kitchen was stocked with a few random items, not enough to cook a meal. The water park booked too many cabana so we didn’t get ours. Staff was amazing! Cafe is over priced and not good food
Our family recently stayed at Jellystone Park at Mark Twain Lake and while there were some positives, overall I left feeling disappointed—particularly with the condition and supervision of the waterpark area.To start with the positives: the campground staff themselves were friendly, accommodating, and pleasant to interact with throughout our stay. We appreciated their willingness to help when needed.Unfortunately, the overall upkeep of the property did not match expectations. The landscaping appeared neglected in many areas and several campsites felt unmaintained and less inviting than expected.My biggest concern was the waterpark, specifically both maintenance and safety. There were multiple areas that appeared unsafe and in need of immediate attention. Several railings were noticeably loose and wobbly, to the point that they appeared close to coming unscrewed. There was also an electrical box near the pool area left open and exposed. Extension cords just sitting around. Additionally, a support beam above the lazy river that appears to contain electrical casing looked significantly rotted and concerning from a structural standpoint.Beyond maintenance concerns, the level of lifeguard attentiveness was troubling. During our visit, lifeguards were frequently wearing AirPods while on duty, and in some cases appeared to be using their phones and watching videos while monitoring waterslides. This created the appearance that attention was divided and raised serious concerns about emergency response readiness. Lifeguards should be actively observing guests and able to hear and respond immediately if assistance is needed. This did not inspire confidence in the safety of the water attractions.Additionally, smaller amenities were not consistently maintained—such as putt putt, where golf balls were repeatedly unavailable. The water balloon zone was not even up and working as bird nests were built inside the tipped over structure.If certain areas are not going to be available for guests to use, it would only be fair that you update the website, letting them know.We chose this campground expecting a fun and safe family experience and left feeling disappointed, primarily because of conditions that seemed preventable with better maintenance and supervision. I hope management takes these concerns seriously, as the park has potential and the staff interactions showed positives, but improvements are needed to create the experience the is marketed on your website that guests expect and deserve.
Anonymous
•
Jun 15, 2026
3.0/5
3.0/5
Sadly the park is not well kept. Most things broke, trash everywhere, electrical box’s wide open, trees and weeds growing in places they shouldn’t… we love coming but definitely think there needs to be some work put back into this place
Anonymous
•
Jun 15, 2026
2.0/5
2.0/5
I have been to this campground numerous times through the past 10 years. All but two visits were with previous owners. I was hopeful that Jellystone would start to take care of it and bring it back to life. This was our first stay at an RV site and it was fine, beside there wasn’t any water by our electric and sewer so we had to use it from the opposite side of our trailer. However, a friend rented a cabin and couldn’t even stay. They were full of bugs and mold. There was a hole in the floor in bathroom, bacon under the fridge, and it was “just cleaned” specifically for her since her first cabin was inhabitable. The cleaner left all their supplies, but yet didn’t clean anything. She was given a full refund, but had some very disappointed kids. The shower house and restrooms were so filthy and didn’t have any soap to wash your hands. The place is falling apart, multiple buildings were in disrepair. No one supervises the activities and so many people were not following safety rules which caused my son to get hurt. The roads are full of pot holes, the waterpark water looks dirty. The one slide isn’t working and the zero entry baby splash pad isn’t being used. The lifeguard at the red and white slide was not even paying attention to when kids came into the water and when they got out. The tiki bar didn’t have any frozen drinks. You couldn’t use a card to pay at the bar or sweet shop and had to wait in another line to pay at the snack shack. The staff was friendly. The ranger station was also lacking in necessities if you forgot something, but had plenty of branded merch as well as toys and gadgets for kids.
Anonymous
•
Jun 15, 2026
5.0/5
5.0/5
We all had a great time weather was perfect cabins we're comfortable
Anonymous
•
Jun 15, 2026
1.0/5
1.0/5
We camped here in 2021 and it was amazing the foam party was awesome compared to whatever paycuts yall did this time around. The waterpark was way ran down. I will say the kids working were nice and had good attitudes. We will drive the extra hour illinios location was by far way better!
Anonymous
•
Jun 15, 2026
1.0/5
1.0/5
Look at Google review or call me since ive been in the office and left my number. Ill also be calling corporate if not. This is unacceptable for a jellystone affiliation after the amount of one's ive stayed at.
Anonymous
•
Jun 15, 2026
4.0/5
4.0/5
Everyone enjoyed themselves overall. Some staff had no information when asking questions, had to go find someone regarding items missing from cabin and finally got to the right person that helped us, few activities were changed but app was not updated so we missed and during check in staff didn't provide info on where things were, things to watch for, etc. They gave keys and sent on our way. Had to ask several questions and then stopped after they couldn't answer. We will return but staff could use some additional training on basic items.
Anonymous
•
Jun 15, 2026
5.0/5
5.0/5
We loved our Lot #138! Thinking of becoming seasonal campers. Denise was great help for another upcoming stay we have in July! She also provided all the information we need as far as seasonal camping information.
Anonymous
•
Jun 15, 2026
3.0/5
3.0/5
Roads in bad shape. All the plugs at the rv site did not work so we could not charge our rented golf cart. Cafe staff gaslight us into thinking their errors were ours. Lifeguards at the water park did not pay attention. Another visitor had to help a child and finally the guard noticed after others were yelling because they were on their phone. We will not be back.
Anonymous
•
Jun 15, 2026
2.0/5
2.0/5
Cabin was so dirty. Bed was hard and had hair everywhere and dirt. The loft had cuss words written on the ceiling. The kitchen was stocked with a few random items, not enough to cook a meal. The water park booked too many cabana so we didn’t get ours. Staff was amazing! Cafe is over priced and not good food