A new BOT sports facility has opened in the DaAn District. The gym costs only NT$50 an hour but the fee is only $25/hr until the end of the month for the new opening. No membership necessary much like the other facilities (see http://blog.islaformosa.com/2008/06/looking-for-bare-bones-gym.html)
The facilities are great and the building is sparkling clean. Check it out!