The Singkham Cave where the famous Pra Singkham Buddha statue once rested is 3.7km west of Ban Samakisai, halfway between Udomxai and Muang La. In Samakisai ask 'Khor kajeh tham noy?' ('May I have the cave key please?') at the second hut south of the bridge. Then cross the bridge and take the second rough track west – just about passable by tuk-tuk or motorbike. This terminates at a collection of huts from which it's just three minutes' walk to the cave. Inside is a replica statue.