The action, which has the support of the Municipality of Sesimbra, is part of the set of activities organised to mark the World Tourism Day, which is celebrated next Monday, and aims to highlight “the importance of marine protection and combat climate change”, explained the association.

The event starts at 08:00 on Saturday and will try to beat the world record set in 2019, in Florida, United States, which brought together 633 divers in 24 hours.

In Sesimbra, a judge from the Guinness World Records organisation will also be present in order to monitor and validate the number of participants, who will have a maximum of 30 to 40 minutes to dive.

Oceanum Liberandum is now appealing to all certified divers to register for the event, using the form available on the association's website.

Registration costs 15 euros, which, according to the association, will help the local diving centres involved in the initiative.