With 20 meeting rooms, over 17,300 sq. ft. of meeting and banquet space, Executive Boardrooms, Business Center, on-site catering, and high speed internet, the Walnut Creek Marriott has all the amenities to ensure your meeting or event runs flawlessly. For kids, we offer the Nickelodeon Your Stay Program - a great way to helpyour little traveler enjoy their stay. After a full day of activities, take a dip in our outdoor pool & hot tub or sneak in a quick workout in our newly remodeled Fitness Center. Main Street Grill.