Finland is part of the Schengen Area, so the visa policy of the Schengen Area applies.
Mauritius is on the “Annex II” list of countries which are visa-exempt, so citizens of Mauritius are allowed to enter the Schengen Area without a visa for tourism/business. There is a slight difference compared to the general 90/180 rule, but in your case it is not relevant, you can just go to Finland without worry.
This can also be check using Timatic, the tool used by airlines to determine what documentation is needed.
For Mauritius nationals visiting Finland, the results are:
- Passports and other documents accepted for entry must be
valid for a minimum of 3 months beyond the period of
Visa required, except for Nationals of Mauritius for a maximum stay of 3 months. (SEE NOTE 56246).
NOTE 56246: The maximum stay is granted within 6 months.
- Joint passports must include For details, click here
- Valid visas in full, invalidated travel documents are
accepted if accompanied by a new travel document.
- Passports and/or passport replacing documents issued more
than 10 years prior to date of travel are not accepted.
- Visitors not holding return/onward tickets could be refused entry.