Bãi Môn is a 400-metre crescent beach nestled between two headlands on the Phú Yên coast - Mũi Nạy to the north and Mũi Điện to the south. The beach sits at sea level beneath the Mũi Điện lighthouse, accessible on foot via a trail from the lighthouse road or by a path descending directly from the lighthouse compound. The western side is backed by primary forest from which a freshwater stream flows year-round across the sand and into the sea. The water is clear and the sand relatively clean - no permanent development, no restaurants, and on most weekdays very few people.
The beach's main claim is its position: Mũi Điện is traditionally regarded as one of the first places on mainland Vietnam to receive the sunrise each morning - a title also claimed by Mũi Đôi in Khánh Hòa, with the debate unresolved. What isn't debated is that the light clearing the horizon directly in front of this beach at dawn is genuinely theatrical. Combined with a Mũi Điện lighthouse visit and an overnight camp, Bãi Môn becomes one of the more memorable stops on the central Vietnam coast.