Thiruvananthapuram: The historic Chilakuru tunnel has been restored to a navigable state, marking a key milestone in Kerala’s efforts to revive inland waterways and promote water-based tourism.
Part of the Akkulam-Chettuwa waterway project, the tunnel—built during the erstwhile Travancore era—once served as a crucial route for passenger and freight movement in southern parts of the state. Officials said the approximately 350-metre-long structure has now been carefully renovated while preserving its historical character.
The restoration has been carried out by Kerala Waterways Infrastructure Limited, a joint venture between the state government and Cochin International Airport Limited.
As part of the inauguration, a light-and-sound show and electric boat rides have been introduced inside the tunnel. An exhibition developed at a cost of around ₹4.5 crore showcases the life and legacy of Sri Narayana Guru and his association with Varkala.
Officials said the tunnel now offers an immersive experience using advanced projection and mapping technologies. Visitors can travel through the passage in 20-seater battery-powered electric boats designed to promote eco-friendly tourism.
Additional infrastructure, including facilities at the boat jetty and nearby beach park, has also been developed under the project. The government said the nearly 280-km-long waterway is a key component of the West Coast Canal renovation initiative and is expected to strengthen inland transport, logistics and tourism in the region.
