Location. The Hyatt Regency Adelaide is located along the River Torrens in Adelaide. The 24 story Hyatt Regency Hyatt offers 367 guestrooms with city, river and parkland views. Select rooms boast views of St. Peters Cathedral and the Adelaide hills. Marble bathrooms contain showers, bathtubs, bathrobes and slippers. Many accommodations include cable television, video game consoles. Coffeemakers and minibars are available. Plush duvets cover the beds.