The most characterful of Hongsa's several monasteries is Wat Simungkhun. Its initiation pavilion (hang song pa ) is fashioned in attractive naive style while the archaic, muralled sǐm sits on an oddly raised stone platform that allegedly covers a large hole 'leading to the end of the world'. It's 1km west of the centre towards Muang Ngeun then 100m north after the first river bridge.