We arrived around 10.30 am (30 min after opening)....

We arrived around 10.30 am (30 min after opening). right after we passed the gates, we didn't know where to go. no signs or hints on how to plan your journey through this place. so we went up the stairs, we saw some fishes, some facts etc, then we went to the room with rays and penguins. we stayed there until 11.30, beacuse we knew, there will be penguings feeding (again no information about that on walls or anywhere - we've heard some communicate from speakers, also in English, but I didn't undserstand a word). so far everything was fine.
we left the penguins feeding little earlier, beacuse we didn't know where to go, and we wanted to see the sharks feeding at 12.00. so we went downstairs where we were forced to take some photography. then we quickly moved through some small aquariums/exhibitions (without looking at them or reading the information) and achieved the big aquarium with sharks, rays and other fishes. aaaaaand again - no information about "the feeding", no sign. and this event (shark feeding) is why we went there on Friday, instead of some other day, and why we came only 30 minutes after opening.
So... we've heard again some speakers communicate and again no understandable word. So we waited at the big aquarium from 11.50 till around 12.45. Nothing happened. so we decided to go to finish and then start again from the beginning to see all the staff that we've missed (because we were in hurry to see sharks feeding).
of course right after we left the area, a lady tried to sell us the photography from the very beginning and right after this, it was the point that I couldn't make it further. We wanted to go back downstairs again, but the line for the forced photography was so LONG, I said "I'm leaving. I'm not going to wait another 30-45 minuted to take photo I don't want.". And of course I was mad, beacuse I was hyped for the sharks feeding. :(((
Afterall, I was pretty disappointed - wanted to see a lot, didn't see much.