From Exeter follow the A38 towards Plymouth and then take the A380 to Torquay.
At Newton Abbot carry on the A380 towards Torquay.
There is a roundabout when you come into Torquay, take the 2nd exit signed Paignton (this is the ring road), follow it up the hill and over the 1st roundabout, at the 2nd roundabout take the 1st exit signed Preston Sea Front (Preston Down Road). Follow this all the way to the sea front, under the railway bridge and bearing right to follow the promenade.
Keep on the sea front road and you will see Colin Road on your right hand side, just before the Redcliff Hotel on your left. The Florida Guest House is on your left hand side on Colin Road.