This route is relatively parallel with the Black Sea shoreline. It starts at Periprava, the Easternmost community on the right shore along Chilia Branch and only accessible by boat / ferry from Tulcea or Chilia Veche (schedules here). Along the way, it provides a great chance of exploring Letea Forest, with its sand dunes, pubescent oaks and once domesticated, nowadays wild horses. Take the dirt road South of Periprava and then leave it to reach Letea Reserve, then, when you’ve had enough of sand dunes, mires and birds’ singing, turn East, probably across a short flooded area, and take the dirt road to Sulina across C. A. Rosetti and Cardon villages. In Sulina get a boat to take you across the river, have some carp or catch roast at the Jean Bart, look around the 1802 lighthouse and the international graveyard relax on the beach and then take the rather straight dirt road South. About one third into the Sfântu Gheorghe road, it crosses a concrete bed draining canal. If waters are high, one needs a boat (there sometimes is a boat and a boatman there, at other times one needs ask in Sulina); better ask before leaving the town. A straight-forward ride will get you to Sfântu Gheorghe, from where there is no road or trail out Westwards, so get a boat or ferry back into Tulcea or get off at Murighiol, for a pleasant ride into Tulcea; Navrom ferry schedules here. What makes this ride interesting is also its diversity: while Periprava is a small village with an end of the world touch, Sulina is a once prosperous trading town hosting a heterogeneous community (hence its interesting international graveyard) and Sfântu Gheorghe provides a mixture of tourist convenience and uncrowded beaches. One can break the ride in Sulina, with a ferry or fast boat back to Tulcea from there; Navrom schedules here and private operator schedules here. Note that Periprava and Sfântu Gheorghe ferries do not run daily, unlike Sulina ones. The route track is available on my dedicated page. It is 72.90 km. long and the Periprava - Sulina - Sfântu Gheorghe took me one day to complete.