GetYourGuide’s coverage of Bhutan is thin. There is little for a walk-in day visitor, because everyone needs a visa and SDF first. What you will mostly find are multi-day private tours from Bhutanese operators.
Before booking, check three things on the listing: whether the SDF and visa are included, whether Punakha really has a night in the itinerary, and whether flights are extra (they usually are). Prices shown here are indicative, and listings can differ by date and group size.
We also saw a day trip from Thimphu to Punakha Dzong and the suspension bridge on GetYourGuide, but could not confirm its direct link. Look for it on the Punakha page on GetYourGuide.

