Mount Tatamailau, also known as Mount Ramelau, is the highest point in East Timor and a significant pilgrimage site, particularly during the Catholic festival in October. The trek to the summit is challenging but rewarding, offering panoramic views of the island. While a solo hike is possible for experienced trekkers, a local guide is recommended due to the rugged terrain and potential for disorientation. Accessibility can be limited, especially during the rainy season (November to April) when trails become slippery and dangerous. The cost of a guided tour can vary, but expect to pay around $50-$100 USD depending on the duration and services included. A typical visit, including the ascent and descent, usually takes a full day.