References for distances.
Sukhothai Historical Park – Wat Saphan Hin: 3,8 Km / 2,4 miles.
Sukhothai Historical Park – Wat Si Chum: 2,7 km / 1,7 miles.
Of course, the itinerary you choose will depend on the time you have available. But if you are able to spend a whole day here, for example, then essentially there are two options open to you on your visit. If your priority is to indulge your senses, soaking up the historical heritage and natural surroundings, the best option is to choose 4 or 5 temples and hire a bicycle to tour them without trying to get around the whole park, calmly.
On the other hand, if you want to tour a variety of sites and get a sense of the whole of the former capital city you can hire a moped, car or tuk-tuk.