Grand Hotel Karel V is a historic 5-star hotel situated in a former monastery in Utrecht. The hotel features a beautiful wellness center that offers a range of amenities, including a swimming pool, sauna, jacuzzi, and massage treatments. Guests can indulge in a variety of wellness activities and treatments to relax and rejuvenate. The hotel's serene atmosphere and luxurious accommodations make it an ideal choice for those looking for a wellness retreat in Utrecht.