Holes & Knolls features two 18-hole mini golf courses that provide fun for the whole family, with one course fully wheelchair accessible. Pick up clubs and pay the daily admission fee inside the Maryknoll Clubhouse, which also features a concession stand. Holes & Knolls is typically open from mid-April to late October. The course will open only if the temperature is a minimum of 50 degrees. The last round of golf goes out 45 minutes before the closing time listed.