  Our primary long-term objective is to seek out additional star clusters in
the poorly studied regions of the MW. The aim of this pursuit is to finalize
the MG's globular and open cluster system census and to gain a comprehensive
understanding of both the formation and evolution of these systems and our
Galaxy as a whole. We report the discovery of a new star cluster, named
Garro~03. We investigated this target using a combination of near-infrared and
optical databases. We employed VVVX and 2MASS data in the NIR, and Gaia DR3 and
the DECaPS2 datasets in the optical passband. We performed a photometrical
analysis in order to derive its main physical parameters. Garro~03 is located
at equatorial coordinates RA=14:01:29.3 and Dec=-65:30:57.0. It is not heavily
affected by extinction $A_{Ks}=0.25\pm 0.04$ mag. It is located at heliocentric
distance of $14.1\pm0.5$ kpc, which places Garro~03 at 10.6 kpc from the
Galactic centre and Z=-0.89 kpc below the Galactic plane. We calculated the
mean cluster PM of ($\mu_{\alpha}^{\ast},\mu_{\delta}) = (-4.57\pm 0.29,\
-1.36\pm 0.27$) mas yr$^{-1}$. We derived an age=3 Gyr and [Fe/H]~$= -0.5\pm
0.2$ by the isochrone-fitting method. The total luminosity was derived in the
$K_s$ and V-bands, finding $M_{Ks} = -6.32\pm 1.10$ mag and $M_V =-4.06$ mag.
The core and tidal radii were measured constructing the Garro~03 radial density
profile and fitting the King model, obtaining $r_c = 3.07\pm 0.98$ pc and $r_t
= 19.36\pm 15.96$ pc. We photometrically confirm the cluster nature for
Garro~03, located in the Galactic disk. It is a distant, low-luminosity,
metal-rich star cluster of intermediate age. We also searched for possible
signatures (streams or bridges) between Garro~03 and Garro~01, but we exclude a
possible companionship. We need spectroscopic data to classify it as an old
open cluster or a young globular cluster, and to understand its origin.
