Udzungwa Mountains National Park in Tanzania is a biodiverse forest ecosystem renowned for its hiking trails, impressive waterfalls like Sanje Falls, and endemic primate species. Accessible primarily by road, the park is best visited during the dry season (June-October) when trails are less challenging, though the rainy season (November-May) can make travel difficult. All visits require a mandatory park guide for safety and ecological insight, meaning solo excursions are not permitted. A typical visit ranges from a half-day hike to Sanje Waterfalls to 2-3 days for more comprehensive exploration of the park's offerings. Approximate costs include daily park entry fees (around $30 for non-residents), mandatory guide fees (roughly $20-30 per day), plus transport and accommodation, making the total highly variable depending on trip length and services utilized. Visitors should prepare for strenuous hiking and take necessary malaria precautions.