Amrâth Grand Hotel Frans Hals is a grand hotel located near the historic center of Haarlem. It features a stunning indoor swimming pool, complete with a jacuzzi and sauna. The pool area is beautifully designed, with large windows that allow natural light to flood in. Guests can take a dip in the pool or relax in the jacuzzi after a day of sightseeing. The hotel also offers spacious and comfortable rooms, making it an ideal choice for travelers looking for a hotel with a swimming pool in Haarlem.