From Punta Arenas (Chile): It is 345 km to the Laguna Amarga Gate at Torres del Paine.
From Puerto Natales (Chile): It is 110 km to the Laguna Amarga Gate at Torres del Paine.
The park has 5 official entrances: Laguna Amarga Gate, Sarmiento Gate, Serrano Gate, Laguna Azul, and Laguna Verde, with the first three being the most commonly used.
There are bus companies that depart from Puerto Natales bus terminal (Rodoviario). You can also hire a tour operator that provides transportation services and programs within the park, depending on the type of service you require.
Access by private vehicle is also possible.