  We present results for hadrons containing a strange quark in quenched lattice
QCD. We calculate masses and decay constants using 60 gauge configurations with
an O(a)-improved fermion action at beta = 6.2. Using the rho mass to set the
scale, we find hadron masses within two to three standard deviations of
experiment. Direct comparison with experiment for decay constants is obscured
by uncertainty in current renormalisations. Finally, we present preliminary
results on the semi-leptonic decay D->K. We find f_K^+(0)/Z_V = 0.75+5-4 and
f_K^0(0)/Z_V = 0.74+4-4.
