Fort Worth golf officials have opened a six-hole practice facility at Rockwood Golf Course. The course can be played as either a six-hole layout with all par-3s or as a three-hole layout with two par-4 holes and one par-3.Cost is $10 for adults, $6 for junior golfers. The fees is an all-day rate, allowing each golfer unlimited practice time. The course will play as a three-hole course on odd-numbered days and as a six-hole loop on even-numbered days.Designed by Colligan Golf Design in Arlington, the layout began accepting golfers July 3. For more information, call 817-457-4616.