Polonnaruwa is very famous for agriculture in Sri Lanka.You can visit some paddy fields and see how do the farmers do their businesses. There are so many hotels,motels and restaurants which provides you the best facilities. Polonnaruwa city is big and you have to travel about 10 kilometers in the sacred city.It is better to rent either bicycle or a scooter for a cheap price.There is a museum near the sea of Parakrama and you can find many information if you visit there.