Mount Merbabu - grassy Savana ridgelines facing the smoking Merapi, a hugely popular ridge-camp climb

The line through Central Java, Indonesia - waypoints, elevation and the day-by-day shape of the walk.
Start of route [interpolated - upgrade in research]
Approximate node - GPS and name to be upgraded in deeper research.
Staging point (approx) [interpolated - upgrade in research]
Approximate node - GPS and name to be upgraded in deeper research.
Turnaround (out-and-back) [interpolated - upgrade in research]
Approximate node - GPS and name to be upgraded in deeper research.
Apr-Oct (dry season)
Cold nights on the ridge, strong sun, wind
Dry-season best; cold nights; very popular ridge camps. Confirm.
Pine forest then open grassy ridgelines to a dormant volcano summit
Non-technical walking/hiking; confirm any exposed or scrambly sections locally
Marked/waymarked route; navigation generally straightforward - carry a map and confirm locally
Suitable for reasonably fit hikers; not wheelchair accessible - confirm specifics
A popular, well-known route - busier in peak season
Selo (north) or Suwanting routes; sunrise from the Sabana
Selo, from Magelang
Out-and-back/loop - no shuttle needed
Ridge camping (Sabana 1/2); no huts
Layered outdoor kit, sturdy footwear, sun/rain protection, ample water; patchy mobile coverage - carry a map/PLB where remote
Services in Magelang / Selo; limited or none on the trail
Not required; self-guided
National-park registration; a guide is common. Confirm.
Permits and operators change - confirm before booking.
Cold, exposure on the ridge, the steep climb
Retrace the route to exit; dial local emergency services; carry a means of calling for help where remote
This profile is desk research, compiled from public sources - not a first-hand trail report. Coordinates are approximate.