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The hidden symmetries of higher dimensional Kerr-NUT-(A)dS metrics areinvestigated. In certain scaling limits these metrics are related to theEinstein-Sasaki ones. The complete set of Killing-Yano tensors of theEinstein-Sasaki spaces are presented. For this purpose the Killing forms of theCalabi-Yau cone over the Einstein-Sasaki manifold are constructed. Two newKilling forms on Einstein-Sasaki manifolds are identified associated with thecomplex volume form of the cone manifolds. Finally the Killing forms on mixed3-Sasaki manifolds are briefly described.

Hidden Symmetries of Euclideanised Kerr-NUT-(A)dS Metrics in Certain Scaling Limits