← All Philippine mountains

Negros Island · Visayas

Mt. Mandalagan

1,885 m above sea level · Negros Occidental · 10.637°N, 123.236°E · effort 6/9

Topographic map of Mt. Mandalagan with its mapped routes in orange and the summit marked
Mapped routes in orange; the triangle marks the summit. Map data © OpenStreetMap contributors · relief: Mapzen (AWS Open Data) · map: Bundok ng Pinas.

An old volcanic complex in the Northern Negros Natural Park, its trails winding past sulfur flats, hidden craters and the surreal white-sand "Tinagong Dagat" clearing. Patag's WWII history adds depth.

  • Tinagong Dagat
  • Sulfur flats
  • WWII Patag

Access and permits

Before you go

PNA reports Tinagong Dagat/Danao closure from February 16, 2026 until further notice for assessment and trekking-policy review. Not verified: specific Tinagong Dagat scope; no reopening located. Historical 2022 fees cannot survive policy review by assumption.

Arrange with: Local tourism office and protected-area office for the intended approach

Research checked 2026-09-08. Source date: 2026-01-22. Current access and fees must be confirmed before travel.

PNA / Northern Negros PASu — Tinagong Dagat in northern Negros open to trekkers until Feb.15

Trails

TrailJump-offEffortTechnicalDistanceTime
Patag TrailBrgy. Patag, Silay City, Neg. Occ.6/9C16.9 km out-and-backOvernight (~5-7 h moving)

Effort (1-9) is computed from distance, ascent and terrain; technical (A-E) follows the trail class, from a clear path (A) to real climbing (E). Elevations, grades and trail data are indicative - always verify with the LGU / DENR before a climb. Routes come from OpenStreetMap and can be partial or outdated; a mapped line does not prove a safe or open path.

Take Mt. Mandalagan offline

Bundok ng Pinas keeps a personal climb log, records your track with the screen off, saves this mountain's topographic map for use without signal and shows the same access notes on the trail. No account needed.

Ask about availability

Tell us your device and country for the latest access options.

Email about access

About the app · Privacy · Support

Nearby mountains