Trogir is a wonderful, beautiful place. The old town is situated on a small island that lies between the mainland and the much larger island of Ciovo. Trogir is connected to Ciovo and the mainland by bridges, so it is easy to stroll over to either place. Trogir is a tiny town - you can walk the whole town in 10 minutes, if you go slowly. Cars are only permitted on the periphery of the island, and the majority of "streets" are narrow, cobble-stoned passageways that wind between medieval buildings and renaissance-era palaces.
Trogir came into its own in the 1500s, and it is said that the town maintained it's cultural identity throughout the centuries in spite of a succession of foreign rulers. UNESCO proclaimed Trogir a World Heritage Site in 1997, and it is easy to see why. The medieval splendor of the city is untarnished, and daily modern life co-exists happily among the centuries-old architecture.
The town is sleepy during the day, but has a pretty vibrant nightlife. Locals come out at night to walk along the promenade, have ice cream, and see the big boats that dock come and go in the harbor. We felt that on the whole, Trogir had the best restaurants and nightlife than all of the cities we had been to in Croatia during our month-long trip. The food was consistently excellent, the people were good-natured and happy (perhaps joyful that they don't live in dour nearby Split), the town's serene beauty is incredible. Trogir seemed to the hangout of choice for hip young Croatians. We were there in late September and the tourist season was pretty much over, yet we were impressed with the number of 20- and 30-something Croatians that we encountered in restaurants and bars, especially on the weekend.
Trogir is also an excellent "base" for exploring other parts of Dalmatia. We are so glad that we took day trips to Split (only 1 half hour away) and opted to spend our nights in Trogir. Split is nice to visit for a few hours at a time, but we can get the rough city treatment at home, thank you! Trogir was like a breath of fresh air after a day in Split - we couldn't wait to get back to our little island! Trogir is also well-situated to explore surrounding islands.