See the blue flames and half mile turquoise acid lake of Mount Ijen, the largest in the world. Located in East Java, Mount Ijen is an active volcano and houses an active sulfur mine since 1968. Begin your hike in the night to view the iconic blue fire and descend into the volcano's crater through the billowing smoke of sulfur to the shores of the lake which is more acidic than battery acid. A trip not for the faint of heart, brave your way up Mount Ijen for views and vistas only seen from its heights.

For those who love sports in the ocean, experience stand up paddle boarding or surfing. Enjoy paddling the coastlines, a meditative experience in the calm waters where sea life can be seen beneath you or ride the waves on your paddleboard. From beginners to experts, there is a level of challenge and intensity for all.

Climb to Bali's highest point, Mount Agung, an active volcano. Begin your ascent at 2:30am at the peak of darkness. As you summit the volcano to its crater's rim, you will rise in time to see the spectacular sunrise and impressive views from the top of the world. Enjoy a well-deserved rest at the top of this mystical mountain before you enjoy the views on your way back to the starting point. More challenging than Mount Batur, fewer people attempt this hike, but with noteworthy sights to see, those who can make the trek will not regret it.

Explore Ubud's jungles and rice fields on foot and on wheels. Begin by trekking the rice fields, enjoying the fresh air, sunshine, and green scenery. Learn from your guide the local customs and farming techniques. Afterwards, hop on a bike for the second half of your adventure as you bicycle past temples, jungle, and other landmarks. Appropriate for most levels, the biathlon is the perfect choice for those up for the challenge.