The Penhir is another small steamship wreck, just 1147 tons and considerably broken up, with just boilers, engine, some scraps of hull plates and bows remaining above the sand. Nevertheless at just 20 metres it made a nice easy second dive.
It went down in November 1935 when it struck rocks in the area of the Fillettes reef whilst en route from Brest to Nantes. Attempts were made to steer for the nearest beach whilst pumping to keep the ship afloat, but the pumps were loosing and the ship had to be abandoned.