There is a travel agency at the entrance to the park.
From here, you can organize for a homestay. There are numerous locals who will rent bedrooms in their house and provide food for a competitive price.
Several large hotels have been built by the entrance to the park. These largely cater to older European tourists. If you are looking for less expensive lodging, ask around- some local apartment owners rent out rooms for low prices, in the range of $10/person.
There is also a camping site in the nearby town, mostly used by people visiting the park. Facilities are fine, good clean toilets, a small shop, and a couple of dining places. Camping can be made wherever you want; it is possible to choose a place between the trees, or a cosy hole in the hills or a more open place with a magnificent view.
Insider travel tip:
As long as you are staying at the camping site, your ticket to the park can be renewed for free at the information office. It’s a good way to spend more time at the park and visit it outside the busier hours. Parking at the park is free, but if you don't want to drive the camping site arranges buses to and from the park in the main season.