Before 2013, if you wanted to go to the beaches and coves of Nasugbu, Lian, and Calatagan in Batangas, the shortest route was through the popular tourist City of Tagaytay. And as anybody who have been to that city knows, Tagaytay on weekends is chocked with traffic. Fortunately, the Kaybiang Tunnel was officially opened last July 1, 2013 and this provides an alternate and equally scenic route to the said beach towns.
Kaybiang Tunnel can be reached by arriving first at the town of Naic via A. Soriano Highway if you’re coming from Kawit, Bacoor, or Metro Manila, or by Governor’s Drive if you’re coming from Dasmariñas, or the province of Laguna. From Naic, you then pass through the poblacions of Maragondon and then Ternate before accessing the highway going towards the beach resorts of Puerto Azul and Caylabne Bay. The Ternate-Nasugbu Road forks from this highway leading towards Kaybiang Tunnel which bores through the mountain range of Pico de Loro (a popular mountain-climbing destination). From the tunnel, the road then winds towards downtown Nasugbu.
At 303 meters (and with a height of 7 meters and a width of 10 meters), Kaybiang Tunnel is the longest highway tunnel in the Philippines. Highway tunnels are actually quite rare in the Philippines and the only other highway-grade tunnel that I know of is the Tipo Tunnel, which I’ve featured previously. The Kaybiang Tunnel project, which includes the connecting roads and a couple of bridges, started in March 2009 and was contracted to SEG RockWorks together with SANVIL Blasting Services. After more than 3 years, the tunnel was completely bored in late 2012 and was inaugurated in April 2013, before being completely opened in July 2013 after all the roads have been paved. But before then, traffic through the road and tunnel has been permitted with some restrictions.
Going to Nasugbu used to take at least 3 hours from Metro Manila. It is expected that with the Ternate-Nasugbu Road and Kaybiang Tunnel, the travel time will be cut to less than 2 hours. And travelers will be rewarded with wonderful views of the coves of Maragondon and Nasugbu including the islands of Limbones and Carabao.