Here is the Tillinghast island green(1917) or "moat" hole at Galen Hall:
From the club's website:
Hole #15 Par 3 Yardage: Back 193, Middle 148, and Forward 95.
Commonly known as the Moat Hole, the fifteenth is among the oldest island greens still in circulation. Built in 1917 by renowned architect A. W. Tillinghast, the moat hole is sometimes compared to the 17th at TPC Sawgrass. The hole is not nearly as visually intimidating as the 17th at Sawgrass, however from the championship tees it is much harder to hit the green. The green is surrounded by a 15-foot wide moat with ten-foot high banks. Three bridges are used to access the green. You can safely lay up short of this hole, unlike the 17th at Sawgrass. Many a match has changed dramatically through our amen corner, the fourteenth and fifteenth. If you are in a match and make two pars on these holes and lose ground, tell that guy to go out on the PGA Tour where they belong!
Historical Note: In the 1990’s, the moat hole was featured in the Philadelphia Inquirer. No less than renowned architect Pete Dye was interviewed for the article, drawing comparisons to his 17th at TPC Sawgrass. During the interview, Mr. Dye seemed unaware of the moat hole but intrigued by the A.W. Tillinghast designed hole.