Si Lanna is a little known national park north of Chiang Mai in Thailand, between Route 107 to the west and Route 118 to the east. Thick deciduous forest covers the Doi Pha Sam Sao mountain range within the park, and springs and waterfalls are present throughout the area. A ride over the mountains from the 118 on route 1150 is rich with views over the surrounding countryside. The road is steep and there are hundreds of corners so make sure your bike is in good condition! The town of Phrao sits in the middle of the area where one can get fuel and refreshment before embarking on Route 1001 for a relatively unspoilt journey to the outskirts of Chiang Mai. In all, the 1150 was a perfect diversion to take on my way back from Chiang Rai.