If you put postcode EH41 3SB into your sat/nav you will get close to us - it will take you the A199 a few hundred metres away so:

On A1 from the City By-Pass & Edinburgh take second off slip for Haddington (Abbotsview junction) then second exit at roundabout marked A199 to East Linton - once you pass the B1347 on your left continue on A199 for approx. 500 metres and look for small sign marked SANDYS MILL pointing right to an underpass - once through underpass (1) follow single track road round to right and continue to very end (do NOT turn off this road) - at very end you are forced left down onto an unmade road - follow down past a yellow house on corner, down a hill until you reach Sandys Mill with four cottages on your left and an old mill on the right - the MILLERS COTTAGE is the last cottage on the left which has a large porch 

If you are coming from the South East on the A1, at the ASDA roundabout marked DUNBAR, take the second exit (2 o'clock) marked A199, follow downhill to the next roundabout and take the first exit (A199) and follow towards East Linton - at the next roundabout take the first exit (still A199) and continue eventually climbing Pencraig Hill - after descending the hill the road levels out and after 2-300 metres look for the sign pointing left for SANDYS MILL through an underpass - now follow instructions above from (1)