Chartrium Grand Bangkok is a hotel with rooms and an outdoor pool behind Siam Paragon. The breakfast buffet serves pho, kimchi, and hummus, and minibar drinks are restocked daily. A buggy runs frequently to Siam Paragon, which is also a 5 to 7 minute walk away, and the pool is open until 11 PM. The breakfast has many menu items, but the taste is disappointing.