Herkimer Diamond Mine KOA

We've stayed here half a dozen times, usually for an evening along our camping trips. We did stay an extra day once to do some of the activities available.

It's a bit of a haul to get to the campground and the first time we were sure that we had missed a turn as we left Herkimer and headed up smaller and more winding roads to the campground. The turn off to the campground comes up fast and is quite sharp so be on the lookout for it.

The campground has many sites including back in and pull through. Not the largest of sites, but lots of green space to give the campground a park like feel. Some camp sites are right along the West Canada Creek. You can swim/wade in it, in addition to riding rafts along it.

There is a working "diamond" mine at the campground where you can try your hand at mining, or just buy some of the crystals that someone else did the work to get. There is a nice restaurant open most days (we have always managed to miss the days that it's open) in addition to stands near the mine that sell hot dogs and burgers.

There is a nice, large pool. In the park like area around it they have stands that sell mixed drinks, and others that sell ice cream and other deserts. The camp store is medium-large and has supplies, food, souvenirs (including Herkimer Diamond), etc.

Long read, but so worth it! Below is the review that I posted last August after our vacation. Mind you, the vacation for my immediate family has been 10 years in a row and when I was a kid the same! The incident that happened was with our friends and therefore when I wrote the review, it stated what I witnessed! I was hoping that management changed and/ or they fixed the problems so I was willing to give it another try, I mean, this has been apart of my childhood and my children’s so why not! I called today, lady was super nice and helping me look through all the campsites because we come with so many people! I paid and then friends of ours called. After they called, our friends said that my reservation was cancelled. What??? So I called back thinking it was something on my end. I then had to wait for management to call back. Called back, and whoever I spoke with was extremely rude! She basically told me I was never welcome back and that the owners said so! Now mind you through this whole thing, I never talked to the owners. So do the owners only take one side of the story? I’m not even someone that this incident directly happened to! I said, well can I please speak to your manager or the owner. No, i am the manager, you are not welcome back. I told her that everyone in our party will probably cancel as well and her response was“I’m just waiting for 1 person to call me”! I said a few choice words and I hung up. CRYING. WHAT????? Are you discriminating me because of an issue you had with another camper???? I can’t believe what this has amounted to. So instead of dealing with your issues you just don’t allow people back? Instead of having the owner or management actually call and have a respectful, which was not had, conversation with someone you just brush it off! I have come to Herkimer longer than some of these people have worked there! I really don’t have words for how I feel. And to make matters worse I always go over my dad’s anniversary of his death, August 5, because this was his favorite place and now I can’t go and neither can my children. Great job herkimer diamond mines koa! I applaud you on your discrimination, disrespect and the lack of empathy you have for your campers! Especially the ones who have been a constant! I’m assuming Phil and his wife are still management, good luck! And to the campers that wish to go there, I really hope you enjoy yourselves because it truly is an amazing place. Unfortunately, my memories had to stop here! August 2025 This review is extremely hard for me to write, but what I had witnessed for a week of being there is disgusting& just simply not right. My family has been coming to Herkimer KOA for decades. Throughout the years, we have shown many other families this"gem"... or so we thought. This year was a bit different, there are new camp managers... This week I have witnessed human waste being sprayed all over campsites, management that discredits everything you say, management that thinks its okay to have charges on your bill that they cant even explain, ice cream cart that closes right before the last kid orders& leaves in tears, bathrooms that are disgusting! This is NOT THE HERKIMER I REMEMBER AS A KID! If you look on google, the owners of this campground is a family that has owned it for 50 years! That's amazing& kudos to them! But Phil, Phil is going to ruin every ounce of what they have worked so hard for!& being a business owner, you want management there representing YOU! Doing what YOU would do if you were there. Those owners should not be receiving mine& my friends reviews today if management did their job! Unfortunately, again very hard to say, we will not be returning if Phil is there.& I can honestly say, that the 14-20 families we bring every time, that spend thousands of dollars, will not be as well! Thank you Phil for ruining a vacation I personally held so close to my heart.& because you don't care about how you treat people& how you manage, you have lost years& years& years of loyalty.

This campground, a KOA campground, offers all you could need and more. From dry tenting sites, RV hookup sites, to elaborate and science-based cabins. They offer a children's playground, pool, little grocery store, volleyball area,  and of course, the Herkimer Diamond Mine and restaraunt, right across the street.

Keeping in mind , it is a busy family resort during prime season and holidays, so if you're looking for a quiet, non-crowded location, this may not be the place for you (unless you try it in offseason),   but the noise did not seem too bad in the evening, and the times Ive been there, most campers did seem respectful of each other. 

There is a beautiful river where some of the sites are located next to, where you can wade into, kayak ,  tube down, or just sit on the bank and watch the local wild life swim by . There are bathrooms and showers, although not the cleanest I've ever witnessed, but they are sufficient and helpful if needed.

Some of the prices can be a little costly on some of the sites, but there are cheaper options on other sites as well, and with the diamond mine nearby, and all the activities that the park offers, it is definitely a park to visit, especially if you have children.