This impossibly blue lake with crystal clear water is one of Indonesia's hidden gems. <br /><br />Video shows the journey to reach the Kali Biru lake, located on the island of Waigeo, Raja Ampat, in the West Papua region of the country. <br /><br />Travellers must trek across land and sea to reach the remote island, which is largely untouched by foreign tourists but popular with locals. <br /><br />The distance of the journey means travellers must pay 500,000 Rupiah (£25) to reach its shimmering waters.<br /><br />But once there, it's worth it. <br /><br />The video was captured on April 8.
