If you don't stay on the campus, you can stay in the main city. Just look for "Hospedaje" signs. Some say "hospedaje con alberca" which means that they rent rooms that have access to a pool.
Be warned that the prices of the hotels usually go up on the weekends when they are on the campus.
The best priced room is the Hotel Juvenil, which costs about 280 pesos on the weekdays and around 350 on the weekends. These rooms are located right next to the Excovento and therefore have easy access to the rest of the town and its shops and restraunts. Each one is more like a little house than a hotel with a kitchen that has a fridge, a restroom, a table that seats four, and four beds two of which are in their own bedroom. This is the cheapest indoor accommodation.
You can also camp if you'd like. Camping is around 150 pesos a night but if you don't have your own tent then you will have to rent one for 100 pesos more.
