We just got back from an amazing 11 night trip to Bhutan taking in the Paro Tsechu festival as well as Tigers Nest, Punakha area, Bumthang area and Phobjikha Gangtey Valley area.
We can highly recommend our tour company Bhutan Rebirth http://www.bhutanrebirth.com .The managing director Keshav, our guide Robin and driver Sangay were fantastic and went out of their way to make travelling with a child easier. More details are on our blog.
We travelled with our 3 and a 1/4 year old daughter so for anyone who wants to get some idea of what we did and travelling to Bhutan with children, you can check out our trip report on our website over 2 blogs and 1 trip report. There are links to photos from their to our flickr account.