TheSwallowClifflooksliketheeavesexpandingouttheroofs.Onthecliffarenumeroustinyholesarrangedinlineswhichwereoncetheplaceswallowsnetin.Thewalkingpathalsopassesrightbelowthecliff.Whileitrains,waterstreamsdownonit,makingpeoplewalkingonitfeelliketheyareinawatercave.Itisalsonicknamed"MogaoCavesinTaiwan",whichindicatedthespectacleofthescenerythere.SwallowCliffisconnectedwithBatCaves.BothofthemhavelongbeenfamousastouristspotsinRei-Li.Althoughbatsandswallowsemigrateoutthere,leavingthecaveandcliffforvisitors,itissaidthattherearestill300-400swallows,mostofthemareAsianHouseMartin,flyingbackhereinthenight.That'swhythisplaceisstillapopulartouristattractioninRei-LinScenicSpot.