Located just across from the Estacion Fluvial Tigre are the boats of Cacciola. These head out to further flung destinations outside of the Delta – the fascinating Isla Martin Garcia and Uruguayan towns of Carmelo and Nuevo Palmira, from where further bus connections exist to Colonia and Montevideo. Cacciola also has a downtown BsAs address on Florida (Florida 520) from where your journey can begin.
There are two lines that go to Tigre. The regular Tigre line, or the Mitre line/Tren de la Costa - both from the Retiro station. If you want to take the Tren de la Costa, take the Mitre line to the end. Then transfer to the Tren de la Costa. This isn't easy to figure out by what is posted in the train station. There are no route maps! I also saw an inaccurate tip on VT saying to take the Olivos line. This will not get you to Tigre. The regular Tigre line is only about a peso from B.A. But there are people walking up and down inside the trains trying to sell you stuff. The Tren de la Costa is $7 pesos from Mitre.
Tigre is a very walkable town. Both train lines (Tren de la Costa and Tigre line) bring you right into town. You can walk around and see the different boat tours that are available. The main boat terminal is crowded and there can be lines to get on one of the typical river cruise boats. They really pack in the people Best thing is to take a 45-minute catamaran ride for $7 pesos that you can catch right along the road. -Catamaranes Interislena. You can't miss it right across from the Hotel Astor. There is a little ticket booth and a woman stands by and tries to drum up business. It wasn't crowded and took us around for a nice tour of the area.
This line originated in 1891 and ran from BsAS to Tigre. Part of the line running between Olivos and Tigre was reestablished in 1995. You can access the line from the Retiro Station by transferring at Olivos from the normal train lines and then walking over the viaduct to this light rail line. The line was built by the owners of the big amusement park in Tigre, Parque de la Costa –also owners of the huge casino next door. There are 11 stops en route and most have tried to recycle the old look of the original stations with an 1890’s look. The line whips past many very upscale neighborhoods and offers the occasional view out over the Rio de la Plata and BsAs beyond. The train station in San Isidro contains a small trendy shopping mall that you walk through as you head to the cathedral on the hill behind.
Cost is about $1.50 one way and $3 for a round trip, as opposed to about $0.95 one way on the regular train from Retiro to Tigre. Note - all of the different train lines, as well as the subway in BsAs were nationalized in the '90's and are run by different companies.