From Vatican News:
“Devoted and with one accord to prayer, together with Mary (cf. Acts 1:14)”. On this theme Pope Francis will lead the recitation of the Rosary on Saturday 30 May, joining the Marian Shrines of the world which, due to the health emergency, have had to interrupt their normal activities and pilgrimages.
The Pope will once again be close to humanity in prayer, to ask the Virgin Mary for help amid the pandemic. The prayer will be broadcast live to the world from the Grotto of Lourdes in the Vatican Gardens at 5.30.pm Rome time.