The Bandaje Falls trek — also called the Ballalarayana Durga trek, after the ruined hilltop fort roughly midway along the route — climbs through the Kudremukh forest range on the Chikmagalur/Dakshina Kannada border, in the Charmadi Ghat section of the Western Ghats. The fort is said to have been built in the 12th century under the Hoysala Empire, in the Karnata-Dravida architectural style typical of that period. "Arbi" means waterfall in the local language, which is why "Bandaje," "Bandaje Arbi" and "Bandaje Falls" are all used for the same place — a waterfall formed by a tributary of the Nethravati river, dropping from around 700 m above sea level.
It is a longer day than Nethravati — roughly 18 km there and back, most groups budgeting 7–8 hours on the trail — and mixes shola forest, grassland and a genuinely steep pull up to the fort ruins before the descent to the falls. Sources differ on how it should be rated: several operators pitch it as beginner-friendly with some preparation, but the distance and duration put it a notch harder than a first trek. Go in reasonably fit, not as your introduction to trekking.