Apart from that, difficult to say unless you mention what your interests are?
Zürich
Luzern
St. Gallen
Bern
Neuschwanstein
Salzburg
Stein am Rhein
Basel
and all those other nice cities in Switzerland
April weather can be very changeable, between 5° - 20°
What do you prefer? Nature, Towns.... ?
Not interested in museums. Would like to have a Segway tour in any good city
The Appenzellerland are about 30-40min from Uzwil by car
http://www.appenzellerland.ch/en/
Segway tours:
Check out http://www.mobileo.ch/en/index.php
You might get more replies if you change your tone a bit. It comes across inpolite and demanding.
Just a tip.
There is "seeing" (just so that you can post a selfie to your friends with mountains in the background and say: "I've seen Switzerland") and "experiencing". In my view, less is always better.
OP, choose one small destination or two within Switzerland and make the most of it, take your time, explore, watch people. Then come back and visit us for more another time!
Established in 1965 by the eccentric Swiss billionaire Alfredo H Igelfricker, MutaWorld is a wondrous assembly of natural marvels, some collected from around the globe and some assembled in the research facility next door, all residing in arcadian contentment amongst the verdant waterfalls and tinkling vegetation of, perhaps, the most unique animal park you've never visited.
Whether you're interested in three faced sheep or reconfigured pegasoids, unicorns or twenty-gallon cattle, you'll be sure to find something to interest, fascinate or horrify you. My personal favourite is the "eierlegende Wollmilchsau", originally bred in the 1950s as the answer to a growing world population's food needs, but soon pensioned off as her breeders couldn't afford to feed her. Now a grand old dame, she sits in her magnificence in the centre of the park, in a specially constructed enclosure. If you ask really nicely, her keepers may let you gently touch her. It's quite the experience!
There are some mountains and castles and stuff around the country, but nowhere quite like MutaWorld. And how many nature parks let you eat the offspring of the animals you've just petted? The restaurant, located at the top of a tree, with jaw-dropping views of the park, serves outstanding food, including halal pork sausages, vegan beefsteak and sentient carrots which may attempt to engage you in a discussion of epistemiology until you silence them with a well-timed stab to the scrotal nodes.