A series of stereoscopic particle image velocimetry (SPIV) measurements have been conducted on an axial waterjet pump following the trajectory of the tip leakage vortex (TLV) across the blade passage. The experiments are performed within a unique optical refractive index-matched facility that houses a transparent acrylic rotor within a casing made of the same material, providing unobstructed access to the entire pump. High magnification data (0.1 mm vector spacing) resolves the tip gap flow, the backflow emanating upstream from the tip, and provides detailed description of the formation, growth, migration and eventual bursting of the TLV. Both instantaneous and ensemble-averaged results are provided to elucidate the complex three-dimensional flow around the tip region. Distributions of turbulent kinetic Energy (TKE) and in-plane turbulence production rate are provided. The TKE is elevated near the blade suction side (SS) tip corner; in the shear layer connecting the SS tip corner and the TLV, in the endwall separation region, as well as around the TLV core. As the TLV migrates across the blade passage, the region of elevated TKE grows and occupies an increasing fraction of the tip region, although its peak value decreases. The normal and shear Reynolds stress demonstrate high inhomogeneity and anisotropy. The in-plane turbulence production rates correspond to the regions of the elevated TKE and a breakdown of its components suggests that the axial extension and compression of flow are the dominant terms in turbulence production.