  Several experiments have been proposed in the recent years to study the
nature of tau neutrinos, in particular aiming for a first observation of tau
anti-neutrinos, more stringent upper limit on its anomalous magnetic moment as
well as new constrains on the strange-quark content of the nucleon. We propose
here a new low-cost neutrino experiment at the CERN North area, named NaNu
(North Area NeUtrino), compatible with the realization of the future SHADOWS
and HIKE experiments at the same experimental area.
