Pangangan Causeway

Overview

Pangangan Causeway is a 3.5-kilometre roadway connecting barangay San Isidro–Lawis in Calape municipality to Pangangan Island, in northwestern Bohol. It is listed in the BPTO provincial tourist-attraction inventory under “History and Culture / Historical Road/Trails.” The causeway was built in the 1950s from coral and limestone fill, replacing a route that previously required residents to wade roughly 4 km through shallow water at low tide to reach the island. It is reported locally to be the longest causeway in the Philippines.

The roadway sits only about two feet above sea level at high tide, which historically left it vulnerable to storm damage. Starting in the late 1950s, local school principal Felipe Josol Ytac Sr. began planting mangrove propagules (chiefly Rhizophora stylosa) along both sides of the causeway with his students; his successor, Anastacio Toloy, expanded the effort into an annual community planting activity from 1961 onward. By 1982 the plantation covered about 6 hectares over 2.5 km of the causeway; today an estimated 54 hectares of mangrove — including Avicennia marina, Sonneratia alba, and a locally noted bakauan hybrid — line both sides and have proven effective at absorbing wave action during typhoons. A layby and small fish port sit at the midpoint of the causeway.

Location

Barangay San Isidro–Lawis, Calape, northwestern Bohol. Calape is a coastal municipality on Bohol’s northwest coast, accessible via Tubigon.

Getting There

Calape is reachable from Tagbilaran by bus or van via the National Highway (approximately 1.5–2 hours). From Tubigon, the trip to Calape is shorter (approximately 30 minutes). The causeway itself is a paved, drivable road connecting San Isidro–Lawis to Pangangan Island — no boat crossing is required. [TO ENRICH: exact road route to barangay San Isidro–Lawis and the causeway access point]

Practical Info

The causeway carries both vehicle and foot traffic; it is a public road, not a toll crossing. [TO ENRICH: whether any heritage signage or interpretation is posted on site]

What to Expect

Driving the crossing puts mangrove close on both sides for its full length — the same planted buffer that has taken the brunt of typhoon wave action off the roadway since the 1960s. The water reads differently by side: calm and sheltered behind the mangrove wall on the landward face, more open and exposed beyond it. [TO ENRICH: tidal conditions and specific viewpoints of Pangangan Island from the crossing]

Notes

• The causeway is the access route to both the Pangangan Island Dive Site and the Mangrove Swamp Forest Reserve listed separately for the same municipality — the reserve status covers the mangrove buffer planted along this same causeway.
• Saving the Pangangan Island Causeway, accessed 2026-07-17.
• Aerial of the Pangangan Island Causeway, the Longest in the Philippines - Calape, Bohol, accessed 2026-07-17.
• panggangan island – the pauses between, accessed 2026-07-17.