Discover science and nature at the Herkimer Diamond Mines in Herkimer, New York. The mines also allow visitors to prospect for diamonds. A KOA Campground is located near the mines and offers families relaxing accommodations. There is a gift shop at the mines that sells souvenirs, including jewelry made from diamonds found in the mines. Additionally, the Herkimer Diamond Cafe is located onsite and offers families a place to stop and grab a bite to eat or a drink to quench their thirst.

The prospect area of the mines is open 9 a.m. to 5 p.m. daily from April 15 to October 31. The gift shop and museum are open daily at 9 a.m., closing at 5 p.m. daily from April to June and September 3 to October 31; and at 6 p.m. from July 1 to September 2. The cafe is open 10 a.m. to 5 p.m. weekends only in April, May, September and October, and 10:30 a.m. to 4:30 p.m. daily from Memorial Day to Labor Day.

The Herkimer Diamond Mines, gift shop, museum and cafe are closed from November 1 to April 14.