In 1983, it was assigned the name Juan Díaz de Solís, honouring the Spanish navigator.

A less mentioned part starts by splitting off Ruta Interbalnearia after the bridge of Arroyo Pando and at its junction with Route 34, in Canelones Department.

It runs for about 7 kilometres (4.3 mi) and stops at the resort Marindia.

[4] Coordinates: 34°47′22.8″S 55°51′7″W / 34.789667°S 55.85194°W / -34.789667; -55.85194 Another part, often mentioned as the "first", starts after the bridge over the stream Arroyo Solís Grande, splitting from the Ruta Interbalnearia, crossing the resort of Solís and running along the coastline until Piriápolis, where it turns into Rambla de los Argentinos and the coastal road until Playa Punta Negra before merging again with Ruta Interbalnearia.

[5] Coordinates: 34°48′28.2″S 55°20′44″W / 34.807833°S 55.34556°W / -34.807833; -55.34556 The longest and most important part for the tourism connects Punta del Este with Aguas Dulces in the northeast.