I'm sure you'll have plenty to shoot at the farm. Your GF can be your model for some outdoor portrait shoots
I've never been to Sun Moon Lake before, but Alishan is a great place! Great weather, breath-taking sceneries. But also depends on your luck. When I was there, I did not manage to see sunrise because it was too misty.
Perhaps you can go there for honeymoon next time. Go experience the homestay..The one i stayed at was Small Swiss. It was fantastic! Can search for more info on web
Nothing at Sun Moon Lake if you are expecting much from the name..But there are alot of other things to take. If you happen to be at the Wen Wu Temple during their special occasion, then that will be different stories. In the evening, you can climb up the tower for nite shot over the lake. But remember to bring torch light.
We are advised not to go alishan when I was there last year. Because of the earthquake, the track in the mountain is destoryed. Have to climb up to see sunrise. Tell you, that is no joke. On the first trip, I set off at around 4.30am and reach the top at around 6am. Everyone wear a sweater because of cold, and I am all wet because of the gears I carried...heheee...I went to another mountain which I find is much more beautiful than alishan..Can't rmb the name till I come across again.
Little Swiss is nice..but go in on Sunday and stay till monday. Only on sunday there are sheep shows. On normal days, there are basically nothing there. Enjoy the hot pot in the evening with the cool weather....
Alot of place in torago is closed due to earthquake too. If you dare, there are illegal paths that goes all the way down to the stream..is nice there.....just dont get caught...hehee...
There are lots to discover. 6days are too short. I have not cover alot of place when I was there 16days. Don't be too greedy. Just cover the northern part of taiwan.