Cagayan Valley offers some amazing spots! For natural attractions, don't miss Callao Cave in Peñablanca, which features stunning limestone formations and a cathedral-like chamber. The Sierra Madre Mountains and Palaui Island, known for their breathtaking landscapes, are also worth exploring. On the cultural side, visit the Basilica Minore of Our Lady of Piat and the historical Ilagan Church. For local food, try the pancit batil patung and lomo-lomo in Tuguegarao. As for accommodation, there are various options from budget to mid-range hotels in Tuguegarao City. Enjoy your trip!