North Kolkata heritage walk: College Street, Kumartuli and Sovabazar

The North Kolkata heritage walk is a self-guided urban route through the oldest parts of Kolkata, West Bengal, India, linking College Street, Sovabazar and Kumartuli. The route covers about 6-8 km and takes roughly 3-5 hours with stops, and it is flat throughout at about 6 m above sea level, so elevation gain is negligible. Trailhead access is by metro: the Kolkata Metro Blue Line serves Mahatma Gandhi Road and Girish Park stations for about ₹5-25, and walkers continue on foot from there. Kumartuli lies next to Ahiritola Ghat on the Hooghly River, and cabs and autos can reach the lanes of the area, though traffic is heavy. The surface is a mix of pavements, narrow lanes, cobbled stretches and busy roads, with little formal shade other than building overhangs and a few street trees. The technical difficulty is low, but crowds, traffic and uneven pavements make the walk tiring in heat. Landmarks include the book stalls and old publishing houses of College Street, the colonial-era buildings around the university, the old mansions of Sovabazar and the potters' workshops of Kumartuli, where clay idols of deities are sculpted by hand. Idol-making is most active from August to October ahead of Durga Puja, when workshops are full of figures in various stages of completion. Visitors usually start at College Street, move toward Sovabazar and finish at Kumartuli and the ghat, though the order can be reversed. Tea stalls, sweet shops and small restaurants line the route, so water and snacks are easy to find. Modest clothing and a light scarf are useful when entering temples, and photographing workshop interiors is best done with permission. Small cash is useful for tea, snacks and rickshaws. A reliable offline map helps in the lanes, and the walk is more comfortable in the cooler months from October to March.