Watching waves underwater has always fascinated me.

The incredible explosion of water and air, the amazing way the light is bent by the curving ocean.

The only problem is that in most surf spots, the water isn't nearly clear enough to see everything that's happening beneath the surface.

This is DEFINITELY not the case in the Mentawais, where the visibility can sometimes stretch beyond 30 meters (90 feet) and is home to some of the most amazing waves in the world.

This photo gallery covers highlights from ten days photographing world beneath the beautiful waves in and around Togat Nusa Retreat in Sumatra.

Check out the photo gallery below for some of the many highlights of the trip, or click here now to see the complete collection of photo galleries from the adventures - from surfing, to aerial photos, to underwater waves, to astrophotography, to some of the most beautiful tropical beaches on earth.