Practical information about Nan
There is a tourist information center in Nan. It is located on the sidewalk opposite to Wat Phumin. They don't see many foreign tourists and seem to only have one person who speaks English well enough to inquire in detail but you still can get a map of the city.
Nan is very easy to visit by bike. There are bike lanes. Most guesthouses in Nan
rent bicycles (50-80 baht per day). Otherwise, the café between the gas station and Wat Hua Kuang also rent bicycles. If Nan can easily be visited by walking, to see the two outer temples including Nan standing Buddha at Prathat Khao Noi, bike or car is mandatory because taxis or tuk-tuk are quite rare in the city.
If you can, try to come to Nan a for the week end. Every Saturday and Sunday evening a small very friendly night market is held in the street along Wat Phumin. Otherwise, every night, street stalls are installed near Sukkasem Hotel on Phakong Road between Wat Suan Tan and the traffic light.
Please note that if you plan to go to Nan for New Year's Eve, book your accommadation weeks in advance because it is a popular destination for Thais on this occasion. Room prices are also significantly rising at this time.