The church is usually open from 9 am until dusk. Call at the Rectory (across the road from the church) if the church is closed.
St Andrew's is in the heart of Guernsey. It easily be reached by car from St Peter Port by the main road that passes the northern entrance to the Princess Elizabeth Hospital (Mount Row and Le Vauquiedor). Drive across the crossroads at Bailiff's Cross and continue towards the west. After a 25 mph zone, there is a 'filter' - the church car park is on the right, immediately after the filter junction with L'Ecluse.
The 71 bus route between the airport and St Peter Port runs past the church, with stops outside.
The reference in Perry's Guide to Guernsey is page 23, G3
Route de St Andre (between junctions with L'Ecluse and Rue des Morts)
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