2022 Birkirkara Festa Santa Elena - Feast of St Helen - Fireworks (Murtali) shells 20 Aug

Il-murtali kollha ta' lejliet il-festa, fl-20 t'Awwissu 2022 tal-festa ta' Santa Liena (Santa Elena), Birkirkara.
The brilliant Fireworks show of the Birkirkara feast on Saturday, 20th August 2022 (St. Helen's Feast).
Festa ta' Sant' Elena (Santa Liena), Birkirkara (Bkara, B'kara), Malta
Festa Birkirkara 2022:

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What time and what location are they doing the fireworks for the feast of St Helen this year? Also what do they do before the fireworks?