For romance, Vltava River Cruise delivers.
A genuinely lovely, low-effort way to see Charles Bridge and the castle skyline from a new angle, especially at golden hour, and a hit with tired feet and multi-gen groups. The catch: the buffet 'dinner cruise' versions are notoriously mediocre and overpriced — the food is an afterthought to the view. Take the cheapest scenic hour, skip the dinner upsell.