10. Merapi GC, Indonesia

The foothills of Indonesia’s most active volcano, Merapi, which has erupted numerous times in the ‘90s and killed more than 350 people in 2010, is exactly where you will find Merapi Golf Course. So much ash landed on the course in 2011 that it had to be closed for a lengthy spell, but that hasn’t stopped members pegging it up on a regular basis.