The St. Regis Washington D.C. is a luxurious hotel that features an indoor swimming pool for its guests. The pool area is beautifully designed, with comfortable lounge chairs and a serene ambiance. Guests can take a dip in the pool, relax in the whirlpool, or unwind in the sauna. The hotel also offers a fitness center and spa facilities, providing additional opportunities for relaxation and wellness. With its elegant accommodations and top-notch amenities, The St. Regis is a fantastic choice for those looking for a hotel with a swimming pool in Washington D.C.