I've posted this video before, but here's some more information on Meinong, Kaohsiung.
The Hakka Culture Center Museum 美濃客家文物館 is a great place to get to know Hakka culture and the Meinong area. Many of the displays have English descriptions and there is at least one guide that speaks English. Call or email them ahead of time to make an appointment so you get the most out of your visit! This is the website: http://meeinonghakka.kcg.gov.tw/index.asp
Uh, just checked the website and can't find an email address or English service. Have the hotel call for you and make a reservation with an English speaking guide, then.
This is the number: 07-6818338
At the culture center, you can pick up a map of Meinong, and some of the more interesting spots and areas are noted on it. If you can, bring a bicycle, or rent one when you get to Meinong. It makes getting around much easier. It's a really rural area, so don't count on public transportation or taxi's - I don't think there are very many.
To get to Meinong, you can take a bus from Kaohsiung train station or Zuoying high speed rail station.