- January and February - 9:00 a.m. to 5:00 p.m.
- March to June - 9:00 a.m. to 6:00 p.m.
- July and August - 9:00 a.m. to 7:00 p.m.
- September - 9:00 a.m. to 6:00 p.m.
- October to December - 9:00 a.m. to 5:00 p.m.
We recommend arriving at least one hour before closing time.
The Grutas da Moeda and the Scientific and Environmental Interpretation Centre (CICA gm) are open to the public every day, including Sundays and public holidays. (Closed on Christmas Day and 1 January, open from 1pm to 5pm)