Same for all archaeological sites in Turkey, entrance to the “Cotton Castle” is paying off. The entrance is 20 YTL (about 8 € or $10) and free for children under 18.
Note that you can visit this place throughout the year. The average temperature is 8 degrees in winter and 24 degrees in summer. For the elderly and families with children the best months to visit Pamukkale are April, May and October.
The water temperature is about 35.6 degrees for the source of about 20 degrees in the travertines. Young and old will be able to enjoy without risk to the health of the water too hot or too cold.
Near the cotton castle you can also find activities such as spa and mud baths.
So enjoy this trip to relax by letting you wear the magic of this beautiful place.