From Tarragona · 41.12° N · 1.24° E
Three getaways with a night away and four day trips from Tarragona for Holy Week, Maundy Thursday to Easter Monday: the Matarraña via the Ebro, Prades, the Penedès by train, Montserrat while the Escolania sings, Sitges, Peñíscola castle and the Siurana reservoir.
Map

In spring the Matarraña is green and the Parrizal river runs with water. Maundy Thursday and Good Friday are holidays in Aragon and people from Zaragoza arrive: on Easter Monday, which is a working day there, Valderrobres and Beceite are quiet.

In Holy Week the Prades forest has new leaves and the nights are still long for the telescopes. Book the astronomical park session, which fixes the time, and check the moon: Easter always falls near the full moon.

The hotel serves its gastronomic menu on the eves of holidays, including that of Easter Sunday, before Monday. The visits to the Sant Sadurní cellars are timed and fill on holidays: book them with the room.

The Escolania sings at Montserrat until Holy Week and goes on holiday afterwards, so in these days you hear it. Go up on the first rack railway: in Holy Week the sanctuary fills from mid-morning.

In Holy Week Sitges has the first sunny terraces without summer's crowd, and the Cau Ferrat extends its hours from April. By train from Tarragona you arrive without thinking about parking.

In Holy Week Peñíscola's old town fills from midday: enter the Papa Luna castle first thing and leave the boat for afterwards. Casa Jaime only takes phone bookings.

The reservoir kayak opens on spring weekends, and in April the Trona is done without heat. Book lunch inside the village, which in Holy Week is the first thing to run out.
Questions
Yes, across Catalonia. Maundy Thursday, on the other hand, is not.
On the night of Good Friday, through Tarragona's Part Alta.
Geocaliahttps://www.geocalia.com/en/spain/catalonia/tarragona/getaways/easter-holy-week