Ride the cable car to the top of Kasprowy Wierch. The views are spectacular.
Take a trip down the Dunajec on a raft.
Make the journey up to lake Morski Oko. This is a very popular destination for the Poles.
Try the local dishes. They can be suprisingly good, especially in the smaller Highlander restaurants.
A day trip to the old city in Krakow is well worth the effort.
In the winter the skiing is very good. In the summer there are hiking and mountain bike trails.