- Swimming is strictly prohibited. Southern coast currents are strong, and the Indian Ocean here is known for powerful undertows. Safety regulations must be respected at all times.
- Visitors should bring sufficient food and drinking water, as facilities are limited within the national park. All waste must be carried out. As a protected conservation area, Trianggulasi operates under strict environmental guidelines.
Trianggulasi Beach stands as a reminder that tourism in Indonesia still holds places where nature leads and infrastructure follows carefully behind. In Alas Purwo, silence is not an absence of activity but a sign that ecosystems are functioning as they should. For those seeking scale, solitude, and a coastline shaped by the Indian Ocean's full character, Trianggulasi remains one of Java's most compelling natural frontiers.