Cost: entry costs has to paid in cash at the entry of Los Glaciares National Park. Prices can be found here.
Personal opinion: The park is amazing and standing in front of the Glacier just let you realize how small you are. There are several hiking options available. First for sure at the Glacier itself, you can hike several ways in order to get close. Second you can hike from the lower car park to the beginning of the Glacier hike. Besides that there are a few other areas in the park where you can park and just hike around a bit to get another angle on the Glacier.
Pingback: Argentina: Los Glaciares National Park (Perito Moreno) - Outdoor Sandra
Pingback: Argentina/Chile: Best of Patagonia - Outdoor Sandra