Jeju Island, South Korea ~ Honeymooners flock to this island off the coast of South Korea for the white-sand beaches, palm trees, beautiful sunsets and emerald waters. Two favorite beaches are Hyeopjae and Geumneung, and those looking for more adventure can hike up Mount Halle, the highest point in South Korea, at 6,400 feet. Need more adventure? Poke around inside the Manjanggul lava tube, part of which is open to the public. The busiest months on Jeju Island are July and August, but accommodations are plentiful.