Times have changed and things are a little easier now. The casino attracts a lot of tourists, especially during the summer, so the dress code has slackened somewhat and a jacket and tie are not required during the day but must be worn in the private rooms after 10pm.

An admission fee of 10 euros will be asked if you want to visit the whole of the casino, as will formal ID (though this can be a Drivers' Licence, Passport or ID card). Cameras must be left at the cloakroom. Note that the casino is only open from 2pm onwards and to anyone over 18 years of age.

More info here.