Normally I’m not that kind of person who spent hours visiting monasteries or churches, I visited Jer贸nimos Monastery kind of only because the airbnb was so close by and I did feel like doing some tourist things that day and it seemed quite convenient, also during corona times, even Belem, one of the most touristic areas in Lisbon was so empty, I had the whole monastery for myself almost the entire afternoon, which made my visit quite pleasant I must say.
There’s a church with separate entrance from the monastery, church is free entrance.