What else? Please don't forget that JR Central also has an access route to the area. It is the rapid train, Mie, operated between Nagoya and Toba. It takes about two hours via the Kansai Main Line, the Ise Railway Line, the Kisei Main Line and the Sangu Line.
Mie is operated by DMU (diesel multiple unit), because the section between Kawarada and Toba is non-electrified. The vehicle is the JR Central's KiHa 75 series. It was launched in 1993 to replace the old DMU models in the Nagoya area. So far, a total of 40 sets, 80 units have been built by Nippon Sharyo.
Although it is a minor access route to the Shima area, I saw many passengers on the Mie rapid train, when I used it last year. It was probably because the Mie's fare is lower than that of Kintetsu limited express train. Specifically, young passengers prefer the Mie rapid train.
Official information about the DMU KiHa 75 series (in Japanese):