City centre & seafront
A boat trip through the wetlands followed by a soak in 2,000-year-old thermal springs on the way back.
Area
Type
Start with the boat tour while the birds are most active in the cooler morning hours, then use the drive back toward the city to stop at Traianoupolis — the Roman ruins and thermal springs sit almost directly on the route between the delta and Alexandroupolis.
This is a half-day-plus-extra rather than a rushed morning trip — budget the whole day if you want time at both stops without feeling hurried, and check the hydrotherapy centre's current status before planning around the baths specifically.
City centre & seafront
City beach & seafront
City centre
Soufli & Didymoteicho, ~65–90km north
Dadia Forest, ~1 hour north
Seafront & city centre
City centre
Agia Paraskevi & Makri