The left tower is open for entrance so it is a perfect spot to admire amazing view. It is better to make sure the weather is ok, to have a good visibility.
View is amazing: the streets of Ostrów Tumski, churches, river, parks, islands, monastery buildings and gardens.
The cost to enter the tower is 5 zloty and it is opened entire year.
The history was brutal for the Cathedral Church Towers. Fire in 1540 and 1759 burnt the towers done. Then in last days of World War II due to heavy bombing and siege by Red Army the Cathedral was almost entirely destroyed (about 70% of the construction). The towers have been completely rebuilt in 1991 along with the renovation of interior.