Take the M3 (or A34 then M3) onto the M27 westbound.
On the M27 at Junction 1, take the turn off for Lyndhurst and follow the A337 to Lyndhurst and then Lymington.
To find the cottage you must proceed from Lyndhurst to Brockenhurst. As you approach Brockenhurst you will see the Balmer Lawn Hotel set back from the road on the left. Balmer Lawn Road (B3055) is beside the hotel and the cottage is about 10 houses from the far end of the road before the bridge, on the right.