A very pretty city with many things to do. Buschart (sp?) is a must if you have time, and the waterfront can be an exciting place to be and also in the center of town and near the provincial museum, the Empress Hotel, and other points of interest. A shuttle from the port to downtown cost $8.00 although it is an easy walk. Note that everything opens at 9:30, so getting there earlier does not help unless you just want to walk around.
Mendenhall Glacier is the big draw although not too impressive compared to what you will see later in the cruise. If you want to do an activity, book it quickly. When we were there, there were 4 other large ships in port, so everything is busy.
Good for a short walk, but basically there is nothing there (The ship's entertainment (comedian) joked about the hammer museum which is the only point of interest there other than a few shops. There is an IGA grocery store for those starving for potato chips.
Relatively nice shopping (but all ports in Alaska are similar with the same stores (jewelry, souvenirs). Be sure to visit Creek street, a cute little shopping area a short walk away. Book excursions early as there may be competition from other cruiseships (3 in port when we visited).