K50 Waterfall, also known as Hang En Waterfall, is a remote natural attraction in the Ba Tơ district of Quảng Ngãi Province, Vietnam. Access to the waterfall typically involves a challenging trek through the jungle, requiring a certain level of physical fitness. Due to the difficult terrain, accessibility for individuals with mobility issues is limited. Solo visits are possible, but guided tours are highly recommended for safety and navigation purposes, as the trail can be difficult to follow. The best time to visit is during the dry season (roughly March to September) to avoid slippery conditions and high water levels. Expect to spend a full day (6-8 hours) for the round trip, including the trek and time at the falls. Costs vary depending on transportation and guide services, but budget accordingly. As it's a relatively untouched natural site, visitors should prioritize eco-friendly practices and leave no trace behind.