Check this option if you will manage bookings on behalf of a diving club. Afterwards, an administrator will be able to link the club divers to your account so you can book places for them on trips. Those divers must also have registered individually beforehand in order to be included in club bookings and trips.
If you represent a Diving Centre, you should register using the same process as a regular user. Afterwards, you must contact Buceo Donosti so they can assign that status administratively. Once activated, you will be able to make multiple bookings for students.