During look down period no scientific or recreational diving was allowed in Portugal. Commercial diving was allowed for emergency situations.
When we came out of lockdown scientific diving was authorised but no recreational diving.
Now on a second fase of re-openning recreational scuba will be allowed form next week on.
No special rules are applied, we follow the rules that are implemented for all activities, mask when social distancing is not possible, reduced number of people to 1/3 in boats and cars.