PGA National is a massive golf resort complex with 5 championship golf courses and was the original home of the PGA back in the 1960's. The courses are only accessible to guests of the resort and members and are pricey by Florida standards. Four of the five courses are on site, the fifth, the Estate is a few miles away.
The Palmer, formerly known as the General, was designed by Arnold Palmer, and is a flat, open, links-style course with grass bunkering and mounding, a moderate use of sand, and water hazards on 16 holes. It's an interesting layout and somewhat forgiving where you can keep the driver out on most holes. There's multiple sets of tees from 4,810 yards to 7,079 yards at the tips, 74.6/141, course/slope ratings.
The Fazio course, formerly the Haig, was designed by Tom Fazio, with a redesign from Tom Fazio II. There's six sets of tees with the White tees playing to 6,200 yards, 70.4/133, course/slope ratings. The layout is the most playable at PGA National as its routed through natural areas with water on 16 holes and 50+ traps.
The Squire, also designed by Fazio, is 6,447 yards, 72.1/140, course/slope ratings from the tips with four shorter tees. The golf course is an open links type of layout and the shortest of the courses here with a great collection of par 3's. It's a shot maker's layout where accuracy is required off the tee and on approach to the greens with frequent sand and water hazards in play.
The Estate course, a short drive from the resort, was designed by Karl Litten, and can play to 6,697 yards, 73.1/134, course/slope ratings with five shorter tees. The layout provides for water hazards on every hole with numerous forced carries, and sand bunkers both along the fairways and guarding the greens as it's routed through a residential development.
The Champion, was originally a George and Tom Fazio design, but was redesigned in 1990 by Jack Nicklaus with a second update in 2014. It was the site of the Ryder Cup in 1983, the P.G.A. Championship in 1987, PGA Seniors' Championship from 1982 through 2000, and has been the home of the Honda Classic. Unlike the other courses, the greens on the Champ are large with a good amount of undulation and relatively fast, with sand throughout and water hazards on 17 holes. The 15th, 16th and 17th holes are called the Bear Trap, where Nicklaus thought your round really needed to be tested and is a fitting finish. There's multiple sets of tees with the tips at 7,045 yards, 75.2/148, course/slope ratings, the Blue tees are 6,373 yards, 71.8/138.