President Barack Obama enjoyed an active day of vacation in his home state of Hawaii, starting off his morning with a workout at the Kaneohe Marine Base.

The activity continued with a hike with family and friends at the Lanikai Pill Box trail. Located on the Windward side of Oahu, the trail is a named for the abandoned pill boxes, or military bunkers, that dot the summit facing the ocean.

Originally these structures were strategic observation posts used by the U.S. military during World War II, to guard against a possible Japanese invasion. After a 45-minute hike, the group returned to the family's luxury vacation rental in Kailua and the president then headed back to the Marine base, this time to hit the links.

Joining his golf game were longtime friends Mike Ramos, Greg Orme and Bobby Titcomb. The group spent nearly six hours on the golf course. No word from the White House on who had the best game.

The president spent the evening at the family's rented Kailua estate.  Obama may have been wise to have spent so much time outside enjoying a full day of sunshine. On Tuesday, the forecast calls for cloudy skies and light rain.