Katnampatti malai is a small hill near Krishnagiri town, reached by stone steps that begin at a Murugan temple trailhead tucked behind a compound wall. The climb runs up the eastern face, which faces the morning sun and heats quickly. Partway up, the trail turns west: the traffic noise from the Chennai-Krishnagiri highway, audible and persistent on the eastern side, drops away entirely. The western slope opens onto farmlands, village ponds, and low hills. The summit is a flat plateau with boulders that work as natural viewpoints. An Anjaneyar temple sits near the plateau entrance; a Murugan shrine stands further in, a recent addition not visible in older satellite imagery of the hill. From the plateau's western end, Krishnagiri hill and Kusumalai hills are clearly visible. Periyamalai and Bolumalai appear from the eastern approach. The hill suits a late-afternoon or sunset outing rather than a midday climb.
Bolumalai Fort rises to 1,035 metres on a granite ridge in the Eastern Ghats, roughly 88 kilometres south-east of Bengaluru in Krishnagiri district. A Perumal temple and the ruins of the old fort stand at the summit, with Krishnagiri dam visible in the valley below alongside the surrounding plateau. The approach road from the base village passes through mango orchards and paddy fields before reaching the marked trailhead, where trekkers park and continue on foot. The offroad track now draws a large weekend crowd of adventure motorcycles from across the region; two-wheelers can ride all the way to the top, while four-wheelers use a dedicated parking area below the summit. Local villagers manage an informal toll at the crossing point, collecting a small fee per vehicle. The trekking route follows a distinct trail from the marked trailhead to the summit through dry deciduous scrub. Weekends bring significant crowds, particularly among the biking community; weekday mornings are considerably quieter and allow a more contemplative visit to the fort ruins and temple. The combination of a proper trekking trail and a driveable summit route makes Bolumalai one of the more accessible hill forts in the Krishnagiri hills.
Narasimha Malai is a hill in Krishnagiri district that takes its name from the Narasimha Swamy Perumal temple on its slopes. The trail begins at a small roadside shrine, follows a concrete road, then climbs stone-cut steps to the temple. A small water body and a cave-like rock hollow sit just beyond the temple to the right. The hill carries no large canopy trees and no fixed trail to the summit; the open terrain allows a direct line to the top. The base is monolithic granite that breaks into uneven, climbable sections on the ascent. A band of noticeably greener vegetation partway up marks a water source in the hill. The summit is a broad, open plateau. A Pillayar shrine occupies the top of the highest rock but is reachable only by a technical climb. The KRS reservoir backwaters are visible from the trailhead; the full dam face opens from the summit, and this hill is one of the landmarks identifiable from the dam itself. Bolumalai, Machakal, Krishnagiri fort, Thalapalli, Periyamalai, and Rayakottai are all visible on a clear day. Rock paintings are marked on Google Maps in the area. A saddle beyond the main summit leads to a secondary peak.
Krishnagiri Fort is a short hill trek that combines a steady climb with the remains of a historic hill fort. The fort is prominently visible from the Krishnagiri tollgate, rising above the surrounding landscape and offering a glimpse of the climb ahead.
The trail climbs the eastern side of the hill to the Perumal temple before continuing across the rocky summits beyond. The section up to the temple is straightforward and can be completed by most hikers, but the terrain becomes more exposed and requires greater care after the temple.
The Periyamalai trek is one of the most demanding day hikes within driving distance of Bengaluru, combining long forested climbs with steep granite monolith sections. The route begins behind the foothill temple on a flight of stone steps before entering a shaded forest trail that passes smaller shrines, including one with a perennial spring. As the climb progresses, the vegetation gradually gives way to exposed rock, culminating in a steep monolith ascent equipped with railings and a short ladder. Remnants of old fort walls near the summit indicate the hill's historical use as a hill fort. The trek ends at the Perumal Temple, which occupies the summit and overlooks the surrounding Krishnagiri hill ranges.
This trail is known for its sustained and demanding climb, making it one of the more physically challenging hikes near Bengaluru. The approach passes through mango orchards before entering forest at the base of the hill. After crossing a solar-powered elephant fence, the trail climbs steeply over exposed rock using carved steps and metal railings. On sunny days, the exposed rock absorbs heat and radiates it back, while the metal railings can become hot to the touch. The gradient eases onto a broad rocky plateau where natural potholes retain rainwater after the monsoon. The route then passes the remains of fort walls before a final climb through a short stretch of vegetation leads to the summit. A small temple occupies the highest rock, while the surviving fortifications indicate the hill's historical significance.
Ankushagiri is a hill fort on the Karnataka–Tamil Nadu border, with the trail leading through dry deciduous forest to the ruins of a little-known fort. The hike begins from a Perumal temple that attracts large numbers of pilgrims on Saturdays, when free prasadam (community meal) is often served in the afternoon. The climb passes granite slopes and rocky sections before reaching the hilltop, where remnants of fort walls, are scattered across the summit.
Musattu Malai follows an old pilgrimage route to a hilltop Vishnu temple on the middle peak of the Trimurti hill range near Varatanapalli. Higher up, the route climbs through rocky terrain and reaches a series of stone steps leading onto the upper slopes. Near the summit are a small sacred pond and mature champaca trees surrounding the stone-built Vishnu temple, which is believed to have existed in some form for centuries. The summit provides uninterrupted views of the surrounding Trimurti hills and the agricultural landscape of the Krishnagiri region.