One Evening in Prague

Without knowing what you like to do when you travel, these are some obvious ideas:

Take a tram uphill to the castle (for a visit, if it's still open when you arrive)
Walk back down and across the Charles Bridge
Wander to and around the old town
Gaze with (or at) the sightseers watching the astronomical clock
Get dinner in the old town
(depending on your interests) catch one of the tourist performances in a venue like the Klementinum Chapel

Have you been there before? We were just there in May and we had dinner at the Bellevue restaurant, that looks out over the Vltava river and Charles Bridge....a wonderful view and experience. Another suggestion might be dinner at Zlata Praha......it’s on the roof of the International Hotel and the view from its dining room is incredible.

great ideas, thank you. wasn't sure about river cruise, chapel orchestra, or just wandering. all great ideas.