On Expedia, the hotel advertises a pool without charges. and that it is a family-friendly pool.
At reception only we were told that pool costs 25€ per person, and that kids are not allowed in during evenings.
I send a polite complaint about this right during stay, but no reply given so far.
The pool was the key factor why we chose this hotel. But 50€ for a pool for two persons, plus no kids, is a rip-off and definitely if no kids may get in.