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Destinations · Researched guide

Costa Brava Diving: Nobody Checked These 5 Operators, but Catalonia Checks Something Else

Aug 15, 2026 5 min read
The Illes Medes seen across the water from the Costa Brava coast

Photo: Enric, Wikimedia Commons, CC BY-SA 4.0.

Start with the bad news, because it is the honest place to start. All 5 Costa Brava operators in the Green Fins register are Digital Members: they registered, and no assessor has visited any of them. On this location the register tells you almost nothing. The good news is that Catalonia runs a check of its own, and it is a harder one: to run scuba diving in the strictly protected zone of the Illes Medes, a centre needs a government authorisation.
Reefs, rules and operators all change. Confirm the current picture before you book.
How this guide was made, and what it is not. Nobody from NOMADREEF has dived Costa Brava. This is not a trip report and it contains no first-hand observation, because inventing one would be worth less to you than saying so. It is built from sources you can open yourself, listed at the foot, and from our own reading of the Green Fins member register on 2026-08-14, which is the part you will not find elsewhere. Where a fact could not be confirmed at its primary source, it is marked as unconfirmed rather than repeated.

Key takeaways

What the register does not tell you here

Green Fins has three certified tiers awarded on an in-person assessment, and a fourth status, Digital Member, for businesses that have registered without one. On 2026-08-14 all 5 Costa Brava members in the register held that fourth status.

So the honest summary of what an independent source confirms about diving here is: these businesses exist and signed up. That is worth something, and it is a great deal less than the same page means for Puerto Galera, where sixteen of sixteen were assessed in person within the year. We would rather draw that line clearly than let one badge stand in for two very different things.

The check that does exist, and it is stiffer

The Illes Medes sit about a kilometre off L'Estartit inside the Parc Natural del Montgrí, les Illes Medes i el Baix Ter, and the strictly protected zone is not open water you can simply take a boat into. The Generalitat de Catalunya requires diving centres to hold an authorisation to run scuba activities there, and states it plainly: “Els centres d'immersió han d'obtenir l'autorització de l'Administració per a poder gestionar activitats d'immersió amb escafandre autònom”.

The authorisation is granted by the Departament de Territori, Habitatge i Transició Ecològica, through its Direcció General de Polítiques Ambientals i Medi Natural, and it runs for two calendar years from the January after it is granted. It applies to the business, not to an individual instructor.

This is a stronger signal than anything on our operator list for this location, and it is invisible to us: we could not find the roll of authorised centres published in a form we could read. The requirement is documented on the government's own procedure page; who currently satisfies it is not something we can show you. So the useful thing we can do is tell you the question exists. Ask to see the authorisation.

What to ask instead of looking at a badge

What to ask instead. A Digital Member listing tells you a business filled in a form. These are better questions, and any decent operator will answer them without fuss: how many divers per guide; whether the guide is in the water with you or on the boat; what happens if you use air faster than the group; and whether they will show you the certificate for whatever they claim to hold. An operator that gets defensive about the fourth one has answered it.

What we did not verify

Dive fees, park access charges, boat schedules, the annual cap on dives per zone and the seasonal pattern are hard facts under our rules and we did not confirm them at a primary source. They are absent rather than guessed at.

Questions

Are Costa Brava dive operators independently checked?

Not by Green Fins. All 5 in the register are Digital Members, meaning registered with no in-person assessment. Catalonia separately requires an authorisation to run diving in the strictly protected zone of the Illes Medes.

What is the Illes Medes authorisation?

A permission granted by the Departament de Territori, Habitatge i Transició Ecològica for a diving centre to run scuba activities in the strictly protected zone. It lasts two calendar years. Ask your centre to show you theirs.

Can I see which centres are authorised?

Not from us. We could not find the list published in a form we could read on 2026-08-14. The requirement is documented; the roll is not.

Yannick Schroth
Yannick Schroth

Writes NOMADREEF and compiles its operator directory. This guide is desk research, not a trip report, and says so at the top. About the author

Sources

  1. Generalitat de Catalunya, Departament de Territori, Habitatge i Transició Ecològica, Autorització dels centres d'immersió ... illes Medes. Requirement, granting department and two-year duration, read 2026-08-14.
  2. Green Fins member register, Reef-World Foundation with the UN Environment Programme, greenfins.net. Membership status for 5 operators, read 2026-08-14.
  3. Our own Costa Brava operator list, where each field carries its evidence and date.
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