"The highlight of the 911-acre park is the eroded surface of a volcanic crater — this 37.5-acre field is where unique rocks, minerals, and gemstones are often found. Using personal or rented mining equipment, park visitors can unearth the likes of diamonds, amethysts, jasper, agate, quartz, and garnets. Beyond mining for precious stones, visitors to Crater of Diamonds State Park can stretch their legs on the park’s walking trails or check out the Diamond Springs Water Park, which is open from Memorial Day through Labor Day. The park also has five walk-in tent sites and 47 RV-friendly campsites outfitted with water, electricity, and bathrooms." - Travel + Leisure Editors