Good question, actually we're going to include a "What to do in Udon Thani" section in the magazine and are looking for suggestions to give others ideas.
I guess if you're not working, retired or are on a holiday, to some Udon may seem boring. So what has say Pattaya got that Udon hasn't? The one thing that springs to mind is a beach. I guess in Pattaya you also have a larger selection of Golf courses, if that's your thing, and much more nightlife.
But what is there to do in Udon? I'll try and list as many things I can think of;
Day 1
Grab a light breakfast at one of stalls around Nong Prajak lake
Take a dip at Ban Chiang's swimming pool
2 hour body massage
Lunch at Good Everything
Bowling at Major Complex
Dinner and Game of Pool at the Clock
Eye Candy at the nightmarket...
...followed by more at Climax.
If you still have enough energy head for +10 cafe then an early breakfast at Home Cafe...give some food to the monks...sleep
Next day...
Breakfast at Downunder's
Hire a car from Lek's
Take a drive to Phu Phra Bat Park
Do the 2hr circuit and take in some great senery
Fresh BBQ prawns at the restaurant on the corner of the Ban Phu, Nong Khai road
Evening walk around Nong Prajak Park followed by a foot massage at one of the street side vendours.
Dinner at the new lakeside restaurant (forgot the name)
Watch the live music and sip a cold beer at the Ton Koon Hotel roof top garden.
Party the night away at the Full Moon Pub and then head to Mambo's from 1am onwards..
If a little drunk grap some spicy food at one of the 24/7 restaurants
Day 3
Breakfast at the Lodge...
...followed by a game of Golf, badminton (air-con building Nr Polytechic school) or tennis at Radjaphat.
Grap some mexican food or sub sandwiches at the Taco restaurant
Head over to Udon Thai house for a cooling dip in the pool and early evening meal
Stop off at Harry's for a drink and swap a few books
Watch the live western music at the Western Pub
Head to Little Rock for live music and coyote girls
late night snack time.
Please feel free add to the list...