After the Air port Family Food centre you will get first signal... go straight... and take free right on second signal... then u will find roundabout... take U trun and take first right....and you will find GRAND MART... I think second right...then you find this road is joing with another road... take left... immediate right...you can reach DPS school. If you want ot DPS office you can park the car near GRAND MART parking... opposite villa ..