The Van der Valk Hotel Hildesheim offers various types of rooms including Deluxe Double Rooms with Balcony, Deluxe Double Rooms with Market Square View, Superior Twin Rooms, King Suites with Balcony, Executive Double Rooms, Deluxe Twin Rooms with Market Square View, Superior Double Rooms, and Junior Suites. Smoking is not allowed in any of the rooms. The rooms accommodate 2 adults, with some rooms able to accommodate an additional child. The bed sizes range from Queen size, Twin, King size, to Queen size for the different room types.

At Van der Valk Hotel Hildesheim, guests have several leisure amenities to enjoy during their stay. They can start by taking a dip in the indoor swimming pool, which is heated and available to adults only. They can also relax in the sauna or work out in the fitness center.

For dining options, guests can visit the on-site restaurant called Restaurant Gildehaus. The restaurant offers a family-friendly, modern, and romantic ambiance, and serves international cuisine.

In addition to these amenities, guests can also indulge in various beauty and wellness treatments at the hair/beauty salon. They can also explore the surrounding area by participating in bike tours, cycling or bowling. Overall, guests have a range of options to choose from to spend their time and enjoy their stay at the hotel.

Yes, Van der Valk Hotel Hildesheim has a restaurant on site called Restaurant Gildehaus. The restaurant offers a family-friendly, modern, and romantic ambiance. However, the provided data does not specify the cuisine options available at the restaurant.