I took a diving tour, 2 dives of 20 minutes for beginners, there are also options for obtaining an international certificate, and for a more advanced level. As entertainment, we were taken to the base of the fortress, where we could swim and sunbathe from the deck in between dives. There were a lot of people, but everything was organized. If you feel after the briefing or during the dive that you feel bad, then you will be returned to the boat, but the money will not be refunded. I dived both times, I really liked it!
I was in November, only three passengers, but they sailed out to sea anyway. Water on the boat is paid, which is strange for PADI 5*, for that there is beer on sale. All equipment is working properly, dive guides work well.