Assumption Grotto has an Adoration Chapel which is in the former convent. The chapel is open Monday through Friday, from 9:00 to about 6:30. Depending on availability of a priest, there may be Benediction. It is also open on Saturdays from 9:00 a.m. until 4:00 p.m.
On First Friday, the chapel is closed and Exposition takes place from after the 7:30 a.m. Mass, in the main parish church, until just before 7:00 p.m. Mass time (usually around 6:30/6:45).