Spa Hotel Colossae Thermal is the only hotel to be rated a "Five-Star" in Denizli. This modern and splendid property has been operated since 1 January 2003 by Işmer.
The Hotel has operation licences for Thermal Spa and Physical Therapy Laboratory issued by the Ministry of Health and the ISO certificate which has been issued in recognition of the quality system it has set up.

Health Programs
The Hotel also has extremely effective and various health programs. Doctor control, thermal pool, Turkish Bath, rubbing, jakuzi, sauna, classic massage (20 mins.), mud bath, kneipp hydrotherapy, hair care, skin care, morning exercises are among these programs

Hotel Facilities
Indoor and outdoor swimming pools, 6 restaurants, 5 bars, night club, discotheque, Spa Health Center, Thermal Pool and Fitness Center, Mud Pools with thermal water and beauty and skin care centers at the Hotel.

Hotel Services
Airport transfers, Intercity Bus Terminal transfers, Rent-a-car, Special guide, Change-Exchange, Baby Chair, Hotel doctor 24 hrs., Multilingual staff (English, German, Russian, French, Italian), Wheelchair, Babysitter, Rent a bicycle.

Room Facilities
Air-Conditioning, Telephone, Satellite TV,Hair-dryer, Safe Deposit Box, Fridge, Minibar, Analog line for dial-up modem connection, Phone in the bath, Balcony,  Radio, Bathtub, Wardrobe and coat rack, Slippers and bathrobe.