The 306 bus, between Watford and Borehamwood, travels along Elstree Road. Rosary Priory is an official stop. NB The 306 is run by Sullivan Buses and does not take Oyster cards.
From Watford Junction Station–walk 0.5 miles (11 minutes) along Clarendon Road to Stop N (Beechen Grove) or Stop F (High Street).
From Watford High Street Station–walk 0.6 miles (13 minutes) down Lower High Street to Stop G (Bushey Arches)
From Watford Junction or High Street, alternatives are 142 or 258. Alight at The Three Crowns, then walk along Elstree Road (0.7 miles, 15 minutes)