This is Callao Cave. It is in the Province of Cagayan northwest of the Luzon island in the Philippines. This cave is perhaps the largest and the most popular in the country among many others. It has seven huge chambers. The locals created a cathedral at the main chamber which is now one of the most sought after wedding venues in the country. It is near the capital city of Tuguegarao reachable by an hour flight or a 12-hours drive from Manila. Rock formations, stalagmites and stalactites creates a more dramatic ambiance in this wondrous cave. The natural light that enters the cave gives its walls vibrant colorful hues.