The radiale of Tiahura is the pioneer radiale of 1971. The mark on the beach is a perpendicular reef. This radiale goes through the 3 coral heads at station 8 and then is aligned to the yellow buoy fixed on the outer slope over -40m.
Map showing the marks for the pioneer radiale of Tiahura
On this radiale some surveys have been conducted Sampling techniques RPT but have been stopped since.