250km (150 miles) north of Manila is Baguio, 1525m (5000ft) above sea level, a cool haven from the summer heat. It is accessible both by air and land, though the drive up the zigzagging Kennon Road is more popular as it offers spectacular views of the countryside. Baguio has a good variety of restaurants, mountain views and walking excursions. Main attractions include The Mansion, summer residence of the Philippine president; Bell Church; Baguio Cathedral; and the Crystal Caves, composed of crystalline metamorphic rocks and once an ancient burial site.