Altitude: 1605 m
Location: E 35014, N (52)82929
Access:from 183, go south up the fault until an area of exposed limestone is met on the left (about 20m). Go left (E) along this exposure up to where the bunde starts and locate a surface stream canyon. This becomes 184 when it goes underground (and it's marked).

It's a sharp narrow canyon and it's a BASTARD. Hence is called Shiruken (the sharp spikey things Ninjas throw).

Exploration: Recorded CUCC 1990, descended by Adam ?