Weekdays only. Mention offer code VISITDENVERWEEKDAY to save $5 each on the most fun guided tour in Denver. Make your reservation at 720-523-3240 or online at (type VISITDENVERWEEKDAY into the comments box). Offer expires June 30, 2017. Subject to availability so please reserve. Most weeks, our guided tours are available on Tuesdays, Thursdays and Sundays. This discount is not valid on weekends, but even without the discount it is well worth it. Please read our reviews.