Ngilgi Cave
Near Yallingup, this is a main site for adventure caving. In between crawling through tight spots, sliding down smooth rock surfaces and gazing at stalactites, you'll learn about the fascinating history of this special cave, explored by candlelight in the 1900s. Semi-guided cave tours take about one hour, cost A$22.50 and run every half hour from 9:30 to 4. Highly recommended adventure caving tours operate at either 9:30 am or 1:30 pm on various weekdays. Prebooking at least 48 hours in advance is advised. Adventure tours cost from A$60 to A$158, and vary from 45 minutes to four hours in length, depending on the tour.